SORL1

UniProt ID: Q92673
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

SORL1 encodes sortilin-related receptor, a large type I membrane receptor of the VPS10P/LDLR family that cycles through the trans-Golgi network, endosomes, recycling endosomes, and the plasma membrane. It binds and sorts cargo proteins and peptides, including amyloid precursor protein, amyloid-beta peptides, lipoprotein-related ligands, neurotrophic factors and receptors, insulin receptor, and cytokine-receptor complexes. In neurons, SORL1 retains and retrieves APP-containing complexes through Golgi/endosomal routes and can direct amyloid-beta toward lysosomal degradation, thereby reducing amyloidogenic APP processing. Other cargo-specific roles in lipid metabolism, trophic signaling, cytokine signaling, vascular smooth muscle behavior, and receptor recycling reflect the same receptor-mediated sorting biology in different cell contexts.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005794 Golgi apparatus
IBA
GO_REF:0000033
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0006892 post-Golgi vesicle-mediated transport
IBA
GO_REF:0000033
ACCEPT
Summary: SorLA participates in vesicular transport from the TGN onward, dispatching itself and cargo to endosomes and the cell surface.
Reason: Core trafficking step in SorLA's sorting itinerary (IBA/IDA).
GO:0016020 membrane
IBA
GO_REF:0000033
ACCEPT
Summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
Reason: Correct but generic; consistent with the transmembrane receptor.
GO:0006622 protein targeting to lysosome
IBA
GO_REF:0000033
ACCEPT
Summary: SorLA routes select cargo (LPL, GDNF, IL6, APOA5, amyloid-beta) to lysosomes for degradation, a defined branch of its sorting output.
Reason: Core degradative sorting branch of the receptor (IBA/IDA).
GO:0045053 protein retention in Golgi apparatus
IBA
GO_REF:0000033
ACCEPT
Summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
Reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
GO:0000139 Golgi membrane
IEA
GO_REF:0000044
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0005041 low-density lipoprotein particle receptor activity
IEA
GO_REF:0000117
ACCEPT
Summary: SorLA functions as an LDL-receptor-family member with complement-type ligand-binding repeats that bind lipoprotein and LRPAP1/RAP ligands.
Reason: Core receptor activity defining SorLA's LDLR-family identity.
GO:0005576 extracellular region
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0005764 lysosome
IEA
GO_REF:0000108
KEEP AS NON CORE
Summary: SorLA routes select cargo (LPL, GDNF, APOA5, amyloid-beta) toward lysosomes for catabolism; the lysosome is a destination of its degradative sorting branch.
Reason: Terminal destination compartment downstream of SorLA's sorting decisions.
GO:0005789 endoplasmic reticulum membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
Reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
GO:0005794 Golgi apparatus
IEA
GO_REF:0000044
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0005829 cytosol
IEA
GO_REF:0000108
MARK AS OVER ANNOTATED
Summary: SorLA is a single-pass type I membrane protein; only a small RIP-released C-terminal fragment is cytosolic, so a bulk cytosol annotation overstates its distribution.
Reason: IEA cytosol overstates localization of an integral membrane protein.
GO:0005886 plasma membrane
IEA
GO_REF:0000044
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0010008 endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
Reason: Membrane localization underpins SorLA's endosomal sorting function.
GO:0016020 membrane
IEA
GO_REF:0000120
ACCEPT
Summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
Reason: Correct but generic; consistent with the transmembrane receptor.
GO:0030658 transport vesicle membrane
IEA
GO_REF:0000044
ACCEPT
Summary: SorLA is carried in transport/secretory and endosome-to-TGN retrograde vesicles that shuttle it and its cargo between compartments.
Reason: Vesicle-membrane localization matches its trafficking itinerary (UniProt: retrograde vesicles).
GO:0031901 early endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
Reason: Membrane sub-localization supporting endosomal cargo sorting.
GO:0032585 multivesicular body membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: MVB-membrane localization is consistent with SorLA delivering cargo to the lysosomal degradation pathway.
Reason: Late-endosomal membrane, secondary to the core TGN/endosome retrieval role.
GO:0055038 recycling endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
Reason: Membrane sub-localization for SorLA's recycling function.
GO:0005515 protein binding
IPI
PMID:11821067
The sorLA cytoplasmic domain interacts with GGA1 and -2 and ...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:17326667
Apolipoprotein A-V interaction with members of the low densi...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:23333276
SorLA controls neurotrophic activity by sorting of GDNF and ...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:25643321
Structural basis for amyloidogenic peptide recognition by so...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:26053850
The Golgi-Localized γ-Ear-Containing ARF-Binding (GGA) Prote...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:26858303
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotr...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:28265003
SorLA in Interleukin-6 Signaling and Turnover.
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:28514442
Architecture of the human interactome defines protein commun...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:30679749
HSPA12A targets the cytoplasmic domain and affects the traff...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0002024 diet induced thermogenesis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA's metabolic regulation of adipose energy expenditure extends to diet-induced thermogenesis, a systemic consequence of its ectodomain activity.
Reason: Pleiotropic energy-balance phenotype, downstream of metabolic signaling roles.
GO:0005641 nuclear envelope lumen
IEA
GO_REF:0000107
UNDECIDED
Summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
Reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
GO:0005771 multivesicular body
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA is seen in MVBs/late endosomes as part of cargo routing toward lysosomal degradation (e.g. LPL, GDNF).
Reason: Downstream late-endosomal station of the degradative arm of SorLA sorting.
GO:0006605 protein targeting
IEA
GO_REF:0000107
ACCEPT
Summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
Reason: Core process: directing proteins to their correct intracellular location.
GO:0010897 negative regulation of triglyceride catabolic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: By trafficking LPL to lysosomes and degrading it, SorLA reduces lipase activity and triglyceride catabolism; a metabolic consequence of degradative sorting.
Reason: Lipid-metabolism effect downstream of SorLA-mediated LPL turnover.
GO:0016477 cell migration
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA modulates migration of smooth-muscle and myeloid cells through uPAR/PLAUR surface regulation, a pleiotropic consequence of its receptor trafficking.
Reason: Generic pleiotropic migration role secondary to ligand trafficking.
GO:0019828 aspartic-type endopeptidase inhibitor activity
IEA
GO_REF:0000107
MODIFY
Summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
Reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
GO:0030514 negative regulation of BMP signaling pathway
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: The SorLA N-terminal ectodomain inhibits BMP/Smad signaling in adipose tissue to restrain energy expenditure; a metabolic, ectodomain-mediated role.
Reason: Pleiotropic metabolic signaling effect of the soluble ectodomain (IEA/ISS).
GO:0038020 insulin receptor recycling
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA recycles internalized INSR via the Golgi to the surface, raising INSR surface levels in adipocytes; a tissue-specific instance of its recycling-sorting role.
Reason: Cargo-specific recycling event downstream of SorLA's general recycling activity.
GO:0043025 neuronal cell body
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA is enriched in neuronal soma, consistent with its high brain expression and role in neuronal cargo (APP, TrkB, GDNF) trafficking.
Reason: Cell-type-specific localization reflecting neuronal expression, not a distinct core compartment.
GO:0045053 protein retention in Golgi apparatus
IEA
GO_REF:0000107
ACCEPT
Summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
Reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
GO:0046628 positive regulation of insulin receptor signaling pathway
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: By increasing INSR surface expression through recycling, SorLA strengthens insulin signaling in adipose tissue, a pleiotropic downstream consequence.
Reason: Signaling effect secondary to SorLA-mediated INSR recycling.
GO:0050768 negative regulation of neurogenesis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA influences neuronal development consistent with its high brain expression and trafficking of neurotrophic cargo (BDNF/TrkB, GDNF).
Reason: Developmental role downstream of neurotrophic-receptor sorting (IEA/ISS).
GO:0097356 perinucleolar compartment
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: No evidence places this transmembrane sorting receptor in the perinucleolar compartment; the IEA call is implausible for SorLA.
Reason: Implausible nuclear sub-compartment for a membrane sorting receptor; electronic over-annotation.
GO:0099638 endosome to plasma membrane protein transport
IEA
GO_REF:0000107
ACCEPT
Summary: SorLA promotes return of internalized receptors (INSR, HER2) from endosomes to the plasma membrane, a recycling arm of its sorting activity.
Reason: Core recycling route mediated by SorLA (UniProt: HER2/INSR recycling).
GO:1900168 positive regulation of glial cell-derived neurotrophic factor production
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: SorLA controls regulated (vs constitutive) GDNF secretion by sorting GDNF and its receptors, influencing GDNF availability; a neurotrophic-specific role.
Reason: Cargo-specific neurotrophic effect downstream of GDNF sorting.
GO:1902430 negative regulation of amyloid-beta formation
IEA
GO_REF:0000107
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:1902992 negative regulation of amyloid precursor protein catabolic process
IEA
GO_REF:0000107
ACCEPT
Summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
Reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
GO:1902997 negative regulation of neurofibrillary tangle assembly
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: SorLA's primary action is on APP/Abeta trafficking; an effect on tau neurofibrillary-tangle assembly is at best indirect and rests only on electronic/ISS inference.
Reason: Tau-tangle effect is speculative and indirect; electronic over-annotation.
GO:1904179 positive regulation of adipose tissue development
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Through its metabolic actions (INSR recycling, BMP inhibition, LPL turnover) SorLA influences adipose tissue development; a pleiotropic systemic role.
Reason: Systemic metabolic/developmental role secondary to its trafficking functions.
GO:1990845 adaptive thermogenesis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Soluble SorLA represses adipose thermogenesis via BMP/Smad inhibition, shifting energy balance toward storage; a metabolic role of the ectodomain.
Reason: Pleiotropic metabolic phenotype of the shed ectodomain (IEA/ISS).
GO:0038024 cargo receptor activity
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface.
Reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
GO:0038024 cargo receptor activity
IDA
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface.
Reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
GO:0038024 cargo receptor activity
TAS
PMID:9157966
A novel mosaic protein containing LDL receptor elements is h...
ACCEPT
Summary: This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface.
Reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
GO:0000139 Golgi membrane
EXP
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0000139 Golgi membrane
EXP
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0000139 Golgi membrane
EXP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0000139 Golgi membrane
EXP
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0000139 Golgi membrane
EXP
PMID:21994944
Sorting protein-related receptor SorLA controls regulated se...
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0005576 extracellular region
EXP
PMID:11082041
Ectodomain shedding, translocation and synthesis of SorLA ar...
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0005576 extracellular region
EXP
PMID:15053742
The mosaic receptor sorLA/LR11 binds components of the plasm...
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0005576 extracellular region
EXP
PMID:16393139
Tumour necrosis factor alpha-converting enzyme mediates ecto...
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0005576 extracellular region
EXP
PMID:16531402
SorLA signaling by regulated intramembrane proteolysis.
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0005789 endoplasmic reticulum membrane
EXP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
KEEP AS NON CORE
Summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
Reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
GO:0005789 endoplasmic reticulum membrane
EXP
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
KEEP AS NON CORE
Summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
Reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
GO:0005886 plasma membrane
EXP
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0005886 plasma membrane
EXP
PMID:14764453
LR11, an LDL receptor gene family member, is a novel regulat...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0005886 plasma membrane
EXP
PMID:15053742
The mosaic receptor sorLA/LR11 binds components of the plasm...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0005886 plasma membrane
EXP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0005886 plasma membrane
EXP
PMID:31138794
SORLA regulates endosomal trafficking and oncogenic fitness ...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0010008 endosome membrane
EXP
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
Reason: Membrane localization underpins SorLA's endosomal sorting function.
GO:0010008 endosome membrane
EXP
PMID:23333276
SorLA controls neurotrophic activity by sorting of GDNF and ...
ACCEPT
Summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
Reason: Membrane localization underpins SorLA's endosomal sorting function.
GO:0031901 early endosome membrane
EXP
PMID:17646382
Sorting by the cytoplasmic domain of the amyloid precursor p...
ACCEPT
Summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
Reason: Membrane sub-localization supporting endosomal cargo sorting.
GO:0031901 early endosome membrane
EXP
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
Reason: Membrane sub-localization supporting endosomal cargo sorting.
GO:0031901 early endosome membrane
EXP
PMID:31138794
SORLA regulates endosomal trafficking and oncogenic fitness ...
ACCEPT
Summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
Reason: Membrane sub-localization supporting endosomal cargo sorting.
GO:0055038 recycling endosome membrane
EXP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
Reason: Membrane sub-localization for SorLA's recycling function.
GO:0055038 recycling endosome membrane
EXP
PMID:31138794
SORLA regulates endosomal trafficking and oncogenic fitness ...
ACCEPT
Summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
Reason: Membrane sub-localization for SorLA's recycling function.
GO:0001960 negative regulation of cytokine-mediated signaling pathway
IDA
PMID:26858303
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotr...
KEEP AS NON CORE
Summary: SorLA dampens cytokine signaling by internalizing and degrading IL6/CLCF1-CRLF1-CNTFR complexes, a downstream effect of its endocytic-degradative sorting.
Reason: Signaling modulation secondary to SorLA cargo internalization and turnover.
GO:0005886 plasma membrane
IDA
PMID:26858303
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotr...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0038024 cargo receptor activity
IDA
PMID:26858303
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotr...
ACCEPT
Summary: This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface.
Reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
GO:1905146 lysosomal protein catabolic process
IDA
PMID:26858303
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotr...
KEEP AS NON CORE
Summary: Lysosomal degradation of SorLA-delivered cargo is a downstream consequence of its degradative sorting branch rather than the proximal sorting activity itself.
Reason: Downstream catabolic outcome of SorLA's lysosomal targeting.
GO:0031901 early endosome membrane
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
Reason: Membrane sub-localization supporting endosomal cargo sorting.
GO:0042147 retrograde transport, endosome to Golgi
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA's cytosolic tail engages retromer (VPS29) and GGA adaptors to retrieve itself and cargo from endosomes back to the TGN.
Reason: Central retrieval route defining SorLA's sorting behaviour (IDA).
GO:0140318 protein transporter activity
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA physically carries bound cargo proteins between compartments, consistent with its cargo-receptor role in directing protein localization.
Reason: Captures the cargo-carrying activity central to SorLA's sorting function (IDA).
GO:1902430 negative regulation of amyloid-beta formation
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:0019828 aspartic-type endopeptidase inhibitor activity
IDA
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
MODIFY
Summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
Reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
GO:0019828 aspartic-type endopeptidase inhibitor activity
IMP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
MODIFY
Summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
Reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
GO:0019828 aspartic-type endopeptidase inhibitor activity
IMP
PMID:21989385
Quantitative modelling of amyloidogenic processing and its i...
MODIFY
Summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
Reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
GO:1902992 negative regulation of amyloid precursor protein catabolic process
IDA
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
ACCEPT
Summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
Reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
GO:1902992 negative regulation of amyloid precursor protein catabolic process
IMP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
Reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
GO:1902992 negative regulation of amyloid precursor protein catabolic process
IMP
PMID:21989385
Quantitative modelling of amyloidogenic processing and its i...
ACCEPT
Summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
Reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
GO:0005515 protein binding
IPI
PMID:11294867
Activation and functional characterization of the mosaic rec...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005794 Golgi apparatus
IDA
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0006898 receptor-mediated endocytosis
IDA
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: SorLA mediates AP-2/clathrin-dependent internalization of surface ligands (uPA-PAI1, APOA5, IL6, HER2), feeding them into its endosomal sorting itinerary.
Reason: Core uptake step of SorLA's cargo-sorting cycle (IDA/TAS).
GO:0007218 neuropeptide signaling pathway
IDA
PMID:11294867
Activation and functional characterization of the mosaic rec...
KEEP AS NON CORE
Summary: SorLA's interaction with neuropeptides (HA) links it to neuropeptide signaling, a downstream context of its ligand-binding capacity.
Reason: Signaling context downstream of SorLA neuropeptide binding.
GO:0009986 cell surface
IDA
PMID:11294867
Activation and functional characterization of the mosaic rec...
ACCEPT
Summary: Surface-exposed SorLA binds ligands (e.g. APP, IL6, uPAR) and mediates their internalization; the surface pool also undergoes ectodomain shedding.
Reason: Cell-surface presence is required for SorLA receptor-mediated endocytosis (IDA).
GO:0042923 neuropeptide binding
IPI
PMID:11082041
Ectodomain shedding, translocation and synthesis of SorLA ar...
KEEP AS NON CORE
Summary: The VPS10P domain binds neuropeptides such as head activator (HA) and neurotensin; a specific partner-binding activity peripheral to the core sorting role.
Reason: Partner-specific ligand binding; ancillary to the defining cargo-receptor activity.
GO:0042923 neuropeptide binding
IPI
PMID:11294867
Activation and functional characterization of the mosaic rec...
KEEP AS NON CORE
Summary: The VPS10P domain binds neuropeptides such as head activator (HA) and neurotensin; a specific partner-binding activity peripheral to the core sorting role.
Reason: Partner-specific ligand binding; ancillary to the defining cargo-receptor activity.
GO:0031333 negative regulation of protein-containing complex assembly
IMP
PMID:21989385
Quantitative modelling of amyloidogenic processing and its i...
KEEP AS NON CORE
Summary: By sequestering APP and modulating BACE1 access, SorLA can limit assembly of processing complexes; an indirect effect of its cargo-binding behaviour.
Reason: Indirect complex-assembly effect downstream of SorLA ligand sequestration (IMP).
GO:0005515 protein binding
IPI
PMID:21994944
Sorting protein-related receptor SorLA controls regulated se...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005794 Golgi apparatus
IDA
PMID:21994944
Sorting protein-related receptor SorLA controls regulated se...
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0005886 plasma membrane
IDA
PMID:21994944
Sorting protein-related receptor SorLA controls regulated se...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:1900168 positive regulation of glial cell-derived neurotrophic factor production
IDA
PMID:21994944
Sorting protein-related receptor SorLA controls regulated se...
KEEP AS NON CORE
Summary: SorLA controls regulated (vs constitutive) GDNF secretion by sorting GDNF and its receptors, influencing GDNF availability; a neurotrophic-specific role.
Reason: Cargo-specific neurotrophic effect downstream of GDNF sorting.
GO:0005515 protein binding
IPI
PMID:30448281
Soluble LR11 competes with amyloid β in binding to cerebrosp...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0006605 protein targeting
IDA
PMID:27322061
SORLA facilitates insulin receptor signaling in adipocytes a...
ACCEPT
Summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
Reason: Core process: directing proteins to their correct intracellular location.
GO:0010897 negative regulation of triglyceride catabolic process
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: By trafficking LPL to lysosomes and degrading it, SorLA reduces lipase activity and triglyceride catabolism; a metabolic consequence of degradative sorting.
Reason: Lipid-metabolism effect downstream of SorLA-mediated LPL turnover.
GO:0038020 insulin receptor recycling
IDA
PMID:27322061
SORLA facilitates insulin receptor signaling in adipocytes a...
KEEP AS NON CORE
Summary: SorLA recycles internalized INSR via the Golgi to the surface, raising INSR surface levels in adipocytes; a tissue-specific instance of its recycling-sorting role.
Reason: Cargo-specific recycling event downstream of SorLA's general recycling activity.
GO:0046628 positive regulation of insulin receptor signaling pathway
IDA
PMID:27322061
SORLA facilitates insulin receptor signaling in adipocytes a...
KEEP AS NON CORE
Summary: By increasing INSR surface expression through recycling, SorLA strengthens insulin signaling in adipose tissue, a pleiotropic downstream consequence.
Reason: Signaling effect secondary to SorLA-mediated INSR recycling.
GO:1904179 positive regulation of adipose tissue development
IDA
PMID:27322061
SORLA facilitates insulin receptor signaling in adipocytes a...
KEEP AS NON CORE
Summary: Through its metabolic actions (INSR recycling, BMP inhibition, LPL turnover) SorLA influences adipose tissue development; a pleiotropic systemic role.
Reason: Systemic metabolic/developmental role secondary to its trafficking functions.
GO:0002024 diet induced thermogenesis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: SorLA's metabolic regulation of adipose energy expenditure extends to diet-induced thermogenesis, a systemic consequence of its ectodomain activity.
Reason: Pleiotropic energy-balance phenotype, downstream of metabolic signaling roles.
GO:0005515 protein binding
IPI
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005768 endosome
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: SorLA cycles through endosomes, capturing internalized cargo (APP, LPL, INSR, HER2) for retrieval to the TGN or routing to lysosomes.
Reason: Endosome is a defining compartment of SorLA's retrieval/sorting itinerary.
GO:0005769 early endosome
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
Reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
GO:0005771 multivesicular body
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
KEEP AS NON CORE
Summary: SorLA is seen in MVBs/late endosomes as part of cargo routing toward lysosomal degradation (e.g. LPL, GDNF).
Reason: Downstream late-endosomal station of the degradative arm of SorLA sorting.
GO:0005783 endoplasmic reticulum
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
KEEP AS NON CORE
Summary: SorLA transits the ER during biosynthesis and maturation, but its sorting activity acts downstream in the TGN/endosomal system rather than in the ER.
Reason: Biosynthetic transit compartment, upstream of and peripheral to the core sorting cycle.
GO:0005794 Golgi apparatus
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0005886 plasma membrane
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0006605 protein targeting
IDA
PMID:21385844
SorLA regulates the activity of lipoprotein lipase by intrac...
ACCEPT
Summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
Reason: Core process: directing proteins to their correct intracellular location.
GO:0030514 negative regulation of BMP signaling pathway
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: The SorLA N-terminal ectodomain inhibits BMP/Smad signaling in adipose tissue to restrain energy expenditure; a metabolic, ectodomain-mediated role.
Reason: Pleiotropic metabolic signaling effect of the soluble ectodomain (IEA/ISS).
GO:1990845 adaptive thermogenesis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Soluble SorLA represses adipose thermogenesis via BMP/Smad inhibition, shifting energy balance toward storage; a metabolic role of the ectodomain.
Reason: Pleiotropic metabolic phenotype of the shed ectodomain (IEA/ISS).
GO:0005041 low-density lipoprotein particle receptor activity
TAS
PMID:20005821
Overexpression of low-density lipoprotein receptor in the br...
ACCEPT
Summary: SorLA functions as an LDL-receptor-family member with complement-type ligand-binding repeats that bind lipoprotein and LRPAP1/RAP ligands.
Reason: Core receptor activity defining SorLA's LDLR-family identity.
GO:0000139 Golgi membrane
TAS
Reactome:R-HSA-8871506
ACCEPT
Summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
Reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-8871494
ACCEPT
Summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
Reason: Membrane localization underpins SorLA's endosomal sorting function.
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-8871506
ACCEPT
Summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
Reason: Membrane localization underpins SorLA's endosomal sorting function.
GO:0050768 negative regulation of neurogenesis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: SorLA influences neuronal development consistent with its high brain expression and trafficking of neurotrophic cargo (BDNF/TrkB, GDNF).
Reason: Developmental role downstream of neurotrophic-receptor sorting (IEA/ISS).
GO:1902997 negative regulation of neurofibrillary tangle assembly
ISS
GO_REF:0000024
MARK AS OVER ANNOTATED
Summary: SorLA's primary action is on APP/Abeta trafficking; an effect on tau neurofibrillary-tangle assembly is at best indirect and rests only on electronic/ISS inference.
Reason: Tau-tangle effect is speculative and indirect; electronic over-annotation.
GO:1902953 positive regulation of ER to Golgi vesicle-mediated transport
IMP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: SorLA promotes anterograde ER-to-Golgi transport of cargo, complementing its retrieval activity in establishing correct cargo localization.
Reason: Trafficking-regulatory role consistent with its sorting function (IMP).
GO:1902966 positive regulation of protein localization to early endosome
IMP
PMID:22621900
GGA1-mediated endocytic traffic of LR11/SorLA alters APP int...
ACCEPT
Summary: SorLA drives delivery of cargo into early endosomes en route to retrieval or degradation, an integral step of its sorting cycle.
Reason: Direct manifestation of SorLA endosomal cargo sorting (IMP).
GO:0001540 amyloid-beta binding
IDA
PMID:24523320
Lysosomal sorting of amyloid-β by the SORLA receptor is impa...
ACCEPT
Summary: SorLA directly binds amyloid-beta (and APP C99/Abeta40) via its ectodomain, enabling capture of newly produced Abeta for lysosomal clearance.
Reason: Defining ligand interaction underlying SorLA's anti-amyloidogenic sorting (IDA/IPI).
GO:0005515 protein binding
IPI
PMID:24001769
SORLA-dependent and -independent functions for PACS1 in cont...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005769 early endosome
IMP
PMID:22621900
GGA1-mediated endocytic traffic of LR11/SorLA alters APP int...
ACCEPT
Summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
Reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
GO:0005769 early endosome
IDA
PMID:24001769
SORLA-dependent and -independent functions for PACS1 in cont...
ACCEPT
Summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
Reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
GO:0005802 trans-Golgi network
IDA
PMID:24001769
SORLA-dependent and -independent functions for PACS1 in cont...
ACCEPT
Summary: SorLA is predominantly localized to the TGN, the compartment where it retains APP and from which it dispatches cargo to endosomes.
Reason: TGN is the principal steady-state site of this sorting receptor (UniProt: 'predominantly in the TGN').
GO:0006622 protein targeting to lysosome
IDA
PMID:24523320
Lysosomal sorting of amyloid-β by the SORLA receptor is impa...
ACCEPT
Summary: SorLA routes select cargo (LPL, GDNF, IL6, APOA5, amyloid-beta) to lysosomes for degradation, a defined branch of its sorting output.
Reason: Core degradative sorting branch of the receptor (IBA/IDA).
GO:0045732 positive regulation of protein catabolic process
IDA
PMID:24523320
Lysosomal sorting of amyloid-β by the SORLA receptor is impa...
ACCEPT
Summary: By routing clients (LPL, GDNF, IL6, amyloid-beta) to lysosomes, SorLA promotes their catabolism as a downstream output of degradative sorting.
Reason: Direct outcome of SorLA's lysosomal targeting branch (IDA).
GO:0055037 recycling endosome
IMP
PMID:22621900
GGA1-mediated endocytic traffic of LR11/SorLA alters APP int...
ACCEPT
Summary: SorLA traffics through recycling endosomes, enabling cargo such as INSR and HER2 to be returned to the cell surface.
Reason: Recycling-endosome residence supports SorLA-mediated receptor recycling (IMP).
GO:1902430 negative regulation of amyloid-beta formation
IDA
PMID:22621900
GGA1-mediated endocytic traffic of LR11/SorLA alters APP int...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:1902430 negative regulation of amyloid-beta formation
IMP
PMID:24001769
SORLA-dependent and -independent functions for PACS1 in cont...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:1902430 negative regulation of amyloid-beta formation
IMP
PMID:24523320
Lysosomal sorting of amyloid-β by the SORLA receptor is impa...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:2001137 positive regulation of endocytic recycling
IMP
PMID:22621900
GGA1-mediated endocytic traffic of LR11/SorLA alters APP int...
ACCEPT
Summary: SorLA enhances recycling of internalized cargo back to the surface, exemplified by HER2 recycling that sustains PI3K-dependent signaling.
Reason: Core recycling-promoting activity of the sorting receptor (IMP).
GO:0001540 amyloid-beta binding
IPI
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
ACCEPT
Summary: SorLA directly binds amyloid-beta (and APP C99/Abeta40) via its ectodomain, enabling capture of newly produced Abeta for lysosomal clearance.
Reason: Defining ligand interaction underlying SorLA's anti-amyloidogenic sorting (IDA/IPI).
GO:0005515 protein binding
IPI
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005641 nuclear envelope lumen
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
UNDECIDED
Summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
Reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
GO:0005641 nuclear envelope lumen
IDA
PMID:21989385
Quantitative modelling of amyloidogenic processing and its i...
UNDECIDED
Summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
Reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
GO:0005783 endoplasmic reticulum
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
KEEP AS NON CORE
Summary: SorLA transits the ER during biosynthesis and maturation, but its sorting activity acts downstream in the TGN/endosomal system rather than in the ER.
Reason: Biosynthetic transit compartment, upstream of and peripheral to the core sorting cycle.
GO:0006605 protein targeting
IDA
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
ACCEPT
Summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
Reason: Core process: directing proteins to their correct intracellular location.
GO:0006892 post-Golgi vesicle-mediated transport
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: SorLA participates in vesicular transport from the TGN onward, dispatching itself and cargo to endosomes and the cell surface.
Reason: Core trafficking step in SorLA's sorting itinerary (IBA/IDA).
GO:0031267 small GTPase binding
IPI
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
KEEP AS NON CORE
Summary: Reported binding to a small GTPase (e.g. RHOH) is a specific partner interaction not central to SorLA's cargo-sorting mechanism.
Reason: Specific partner binding, peripheral to the core sorting function (IPI).
GO:0031985 Golgi cisterna
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: IDA localization to Golgi cisternae is consistent with SorLA's residence in the Golgi stack during cargo sorting and retrieval.
Reason: Cisternal localization refines the core Golgi pool of this sorting receptor.
GO:0034067 protein localization to Golgi apparatus
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: By capturing and retrieving cargo to the Golgi/TGN, SorLA establishes the Golgi localization of clients such as APP.
Reason: Direct consequence of SorLA's retrieval/retention activity (IDA).
GO:0045053 protein retention in Golgi apparatus
IDA
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
Reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
GO:1902430 negative regulation of amyloid-beta formation
IDA
PMID:16407538
Interaction of the cytosolic domains of sorLA/LR11 with the ...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:1902430 negative regulation of amyloid-beta formation
IMP
PMID:17855360
SorLA/LR11 regulates processing of amyloid precursor protein...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:1902430 negative regulation of amyloid-beta formation
IMP
PMID:21989385
Quantitative modelling of amyloidogenic processing and its i...
ACCEPT
Summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
Reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
GO:0070062 extracellular exosome
HDA
PMID:19056867
Large-scale proteomics and phosphoproteomics of urinary exos...
KEEP AS NON CORE
Summary: HDA detection of SorLA in exosomes is consistent with proteomic surveys; it is incidental to the receptor's intracellular sorting function.
Reason: High-throughput proteomic localization; not a core functional site.
GO:0005515 protein binding
IPI
PMID:14764453
LR11, an LDL receptor gene family member, is a novel regulat...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
Reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
GO:0005576 extracellular region
IDA
PMID:14764453
LR11, an LDL receptor gene family member, is a novel regulat...
KEEP AS NON CORE
Summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
Reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
GO:0014910 regulation of smooth muscle cell migration
IDA
PMID:14764453
LR11, an LDL receptor gene family member, is a novel regulat...
KEEP AS NON CORE
Summary: The shed SorLA ectodomain promotes smooth-muscle migration via increased uPAR surface display, a pleiotropic vascular role of the soluble fragment.
Reason: Vascular phenotype downstream of ectodomain/uPAR handling, not core sorting.
GO:0016020 membrane
IDA
PMID:14764453
LR11, an LDL receptor gene family member, is a novel regulat...
ACCEPT
Summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
Reason: Correct but generic; consistent with the transmembrane receptor.
GO:0005768 endosome
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA cycles through endosomes, capturing internalized cargo (APP, LPL, INSR, HER2) for retrieval to the TGN or routing to lysosomes.
Reason: Endosome is a defining compartment of SorLA's retrieval/sorting itinerary.
GO:0005794 Golgi apparatus
IDA
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
Reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
GO:0006605 protein targeting
IMP
PMID:16174740
Neuronal sorting protein-related receptor sorLA/LR11 regulat...
ACCEPT
Summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
Reason: Core process: directing proteins to their correct intracellular location.
GO:0030169 low-density lipoprotein particle binding
IPI
PMID:17326667
Apolipoprotein A-V interaction with members of the low densi...
ACCEPT
Summary: Through its LDLR-class complement repeats SorLA binds LDL particles, reflecting its membership in the LDL-receptor gene family.
Reason: Direct ligand-binding activity characteristic of this LDLR-family receptor (IPI).
GO:0005886 plasma membrane
TAS
PMID:9157966
A novel mosaic protein containing LDL receptor elements is h...
ACCEPT
Summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
Reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
GO:0006898 receptor-mediated endocytosis
TAS
PMID:9157966
A novel mosaic protein containing LDL receptor elements is h...
ACCEPT
Summary: SorLA mediates AP-2/clathrin-dependent internalization of surface ligands (uPA-PAI1, APOA5, IL6, HER2), feeding them into its endosomal sorting itinerary.
Reason: Core uptake step of SorLA's cargo-sorting cycle (IDA/TAS).

Core Functions

SORL1/SORLA is a type I membrane cargo receptor that binds APP and other ligands and routes them through trans-Golgi, endosomal, recycling, lysosomal, and plasma-membrane pathways via adaptor-dependent sorting.

Supporting Evidence:
  • PMID:16174740
    sorLA acts as a sorting receptor that protects APP from processing into Abeta and thereby reduces the burden of amyloidogenic peptide formation
  • PMID:17855360
    sorLA acts as a retention factor for APP in trans-Golgi compartments/trans-Golgi network, preventing release of the precursor into regular processing pathways
  • PMID:16407538
    sorLA acts as a trafficking receptor that prevents BACE-APP interactions and hence BACE cleavage of APP

SORL1 binds amyloid-beta peptides through its VPS10P domain and can route nascent amyloid-beta toward lysosomal catabolism, complementing its APP-retention role in lowering amyloidogenic peptide production.

Supporting Evidence:
  • PMID:24523320
    this receptor to direct lysosomal targeting of nascent Aβ peptides
  • PMID:24523320
    Aβ binds to the amino-terminal VPS10P domain of SORLA
  • PMID:22621900
    LR11 modulates Aβ levels by promoting APP traffic to the endocytic recycling compartment

References

Manual transfer of experimentally-verified manual GO annotation data to orthologs by curator judgment of sequence similarity
Annotation inferences using phylogenetic trees
Gene Ontology annotation based on UniProtKB/Swiss-Prot Subcellular Location vocabulary mapping, accompanied by conservative changes to GO terms applied by UniProt
Automatic transfer of experimentally verified manual GO annotation data to orthologs using Ensembl Compara
Automatic assignment of GO terms using logical inference, based on on inter-ontology links
Electronic Gene Ontology annotations created by ARBA machine learning models
Combined Automated Annotation using Multiple IEA Methods
Ectodomain shedding, translocation and synthesis of SorLA are stimulated by its ligand head activator.
Activation and functional characterization of the mosaic receptor SorLA/LR11.
The sorLA cytoplasmic domain interacts with GGA1 and -2 and defines minimum requirements for GGA binding.
LR11, an LDL receptor gene family member, is a novel regulator of smooth muscle cell migration.
The mosaic receptor sorLA/LR11 binds components of the plasminogen-activating system and platelet-derived growth factor-BB similarly to LRP1 (low-density lipoprotein receptor-related protein), but mediates slow internalization of bound ligand.
Neuronal sorting protein-related receptor sorLA/LR11 regulates processing of the amyloid precursor protein.
Tumour necrosis factor alpha-converting enzyme mediates ectodomain shedding of Vps10p-domain receptor family members.
Interaction of the cytosolic domains of sorLA/LR11 with the amyloid precursor protein (APP) and beta-secretase beta-site APP-cleaving enzyme.
SorLA signaling by regulated intramembrane proteolysis.
Apolipoprotein A-V interaction with members of the low density lipoprotein receptor gene family.
Sorting by the cytoplasmic domain of the amyloid precursor protein binding receptor SorLA.
SorLA/LR11 regulates processing of amyloid precursor protein via interaction with adaptors GGA and PACS-1.
Large-scale proteomics and phosphoproteomics of urinary exosomes.
Overexpression of low-density lipoprotein receptor in the brain markedly inhibits amyloid deposition and increases extracellular A beta clearance.
SorLA regulates the activity of lipoprotein lipase by intracellular trafficking.
Quantitative modelling of amyloidogenic processing and its influence by SORLA in Alzheimer's disease.
Sorting protein-related receptor SorLA controls regulated secretion of glial cell line-derived neurotrophic factor.
GGA1-mediated endocytic traffic of LR11/SorLA alters APP intracellular distribution and amyloid-β production.
SorLA controls neurotrophic activity by sorting of GDNF and its receptors GFRα1 and RET.
SORLA-dependent and -independent functions for PACS1 in control of amyloidogenic processes.
Lysosomal sorting of amyloid-β by the SORLA receptor is impaired by a familial Alzheimer's disease mutation.
Structural basis for amyloidogenic peptide recognition by sorLA.
The Golgi-Localized γ-Ear-Containing ARF-Binding (GGA) Proteins Alter Amyloid-β Precursor Protein (APP) Processing through Interaction of Their GAE Domain with the Beta-Site APP Cleaving Enzyme 1 (BACE1).
Cytokine-Like Factor 1, an Essential Facilitator of Cardiotrophin-Like Cytokine:Ciliary Neurotrophic Factor Receptor α Signaling and sorLA-Mediated Turnover.
SORLA facilitates insulin receptor signaling in adipocytes and exacerbates obesity.
SorLA in Interleukin-6 Signaling and Turnover.
Architecture of the human interactome defines protein communities and disease networks.
Soluble LR11 competes with amyloid β in binding to cerebrospinal fluid-high-density lipoprotein.
HSPA12A targets the cytoplasmic domain and affects the trafficking of the Amyloid Precursor Protein receptor SorLA.
SORLA regulates endosomal trafficking and oncogenic fitness of HER2.
A reference map of the human binary protein interactome.
Interactome Mapping Provides a Network of Neurodegenerative Disease Proteins and Uncovers Widespread Protein Aggregation in Affected Brains.
Dual proteome-scale networks reveal cell-specific remodeling of the human interactome.
A novel mosaic protein containing LDL receptor elements is highly conserved in humans and chickens.
Reactome:R-HSA-8871494
SORL1 binds APP(18-770)
Reactome:R-HSA-8871506
SORL1 transports APP(18-770) from endosome lumen to Golgi lumen

Suggested Questions for Experts

Q: Should GO add a more specific APP/amyloid-beta cargo sorting receptor activity term for SORL1-like receptor functions, or is cargo receptor activity plus cargo-specific binding/process annotations sufficient?

Suggested experts: GO receptor activity curators, Alzheimer trafficking experts

Q: Which SORL1 cargo-specific phenotypes, such as insulin receptor recycling, GDNF/GFRA1 turnover, IL6-family cytokine regulation, or HER2 recycling, should be retained as non-core versus represented only through generic cargo sorting?

Suggested experts: VPS10P-domain receptor experts, GO annotation curators

Q: Are nuclear-envelope or perinucleolar localization annotations for SORL1 supported by direct full-text evidence, or are they artifacts of perinuclear Golgi/endosomal localization descriptions?

Suggested experts: cellular trafficking curators, SORL1 cell biology experts

Suggested Experiments

Experiment: Use endogenous SORL1 knock-in/knockout neurons to compare APP, BACE1, and nascent amyloid-beta routing across TGN, early endosome, recycling endosome, and lysosomal compartments.

Hypothesis: SORL1 lowers amyloidogenic processing primarily by retaining or retrieving APP/BACE1-containing cargo away from compartments that favor BACE cleavage and by routing nascent amyloid-beta to lysosomes.

Type: live-cell cargo trafficking and compartment-resolved APP processing assay

Experiment: Introduce Alzheimer-associated SORL1 variants into the endogenous locus and assay cargo binding, adaptor recruitment, endosome-to-Golgi retrieval, and A-beta lysosomal targeting.

Hypothesis: Pathogenic SORL1 variants impair specific cargo-binding or adaptor-dependent trafficking steps without eliminating the general sorting-receptor scaffold.

Type: endogenous variant knock-in functional rescue assay

Experiment: Compare APP/A-beta, insulin receptor, GDNF/GFRA1, IL6-family cytokine complexes, and HER2 as parallel cargoes in matched cellular systems.

Hypothesis: SORL1 uses a shared trafficking architecture for many cargoes, but Alzheimer-relevant APP/A-beta handling depends on cargo-specific binding and adaptor requirements.

Type: multi-cargo receptor sorting assay

📚 Additional Documentation

Notes

(SORL1-notes.md)

SORL1 notes

Review status

  • First-pass review completed on 2026-06-19.
  • just fetch-gene-pmids human SORL1 completed successfully; all 34 PMID-backed publication caches were present after refresh.
  • Falcon deep research was attempted with timeout 180 just deep-research-falcon human SORL1 --fallback perplexity-lite, but the process timed out and no provider deep-research artifact was written. These notes rely on cached UniProt, GOA, and publication files.
  • just validate human SORL1 passes cleanly.

Functional synthesis

SORL1 encodes SORLA/LR11, a VPS10P/LDLR-family type I membrane sorting receptor. Its core biology is cargo binding and adaptor-dependent trafficking through trans-Golgi, endosomal, recycling-endosomal, lysosomal, and plasma-membrane routes.

For Alzheimer biology, the strongest functional axis is APP and amyloid-beta handling. The foundational APP paper supports interaction, Golgi/endosomal colocalization, and reduced amyloidogenic processing: PMID:16174740 A follow-up mechanistic paper supports the BACE/APP trafficking model rather than direct enzyme inhibition: PMID:16407538 Adaptor-dependent retention/retrieval is supported by the GGA/PACS-1 study: PMID:17855360

SORL1 also binds and sorts amyloid-beta peptides directly. The lysosomal-sorting study supports a distinct amyloid-beta cargo function: PMID:24523320 and links it to lysosomal targeting: PMID:24523320 Endocytic recycling evidence supports an additional route by which LR11/SORLA alters amyloid output: PMID:22621900

Many other SORL1 annotations are real cargo-specific biology but are not the core Alzheimer review focus. Examples include lipoprotein lipase trafficking PMID:21385844, GDNF/GFRA1/RET sorting PMID:23333276, insulin receptor recycling PMID:27322061, and HER2 recycling in cancer cells PMID:31138794.

Annotation decisions

  • Accepted cargo receptor activity, protein transporter activity, APP/amyloid-beta binding and processing terms, protein targeting/sorting/recycling terms, receptor-mediated endocytosis, and core Golgi/endosomal/plasma-membrane locations.
  • Modified aspartic-type endopeptidase inhibitor activity: the evidence supports reduced BACE-dependent APP cleavage by trafficking, not direct BACE catalytic inhibition. Replacement terms are negative regulation of amyloid precursor protein catabolic process and negative regulation of amyloid-beta formation.
  • Marked generic protein binding annotations as over-annotated because the useful biology is specific cargo receptor activity, amyloid-beta binding, lipoprotein binding, or cargo-specific sorting.
  • Kept adipose/insulin, GDNF, cytokine, HER2/cancer, smooth-muscle, neuropeptide, and broad extracellular/exosomal/localization annotations as non-core.
  • Marked cytosol, perinucleolar compartment, and neurofibrillary-tangle regulation as over-annotated; the nuclear-envelope lumen annotations were left UNDECIDED because the cached evidence does not allow full-text verification.

Final action distribution: 92 ACCEPT, 44 KEEP_AS_NON_CORE, 25 MARK_AS_OVER_ANNOTATED, 4 MODIFY, 3 UNDECIDED.

Knowledge gaps and experiments

  • The GO representation is still coarse: cargo receptor activity captures the receptor class, but does not distinguish APP/amyloid-beta cargo sorting from other SORL1 cargo programs.
  • The largest mechanistic gap is whether Alzheimer-associated SORL1 variants selectively impair APP binding, amyloid-beta binding, adaptor recruitment, endosome-to-Golgi retrieval, or lysosomal delivery.
  • Useful experiments would use endogenous SORL1 variant knock-ins in human neurons, with compartment-resolved live imaging and biochemical readouts for APP, BACE1, nascent amyloid-beta, and cargo-specific adaptor recruitment.

2026-06-20 Second-Pass Review Notes

Second-pass audit confirmed the existing action calls. No annotation actions were
changed. The YAML now records reference_review metadata for the main APP and
amyloid-beta trafficking anchors: PMID:16174740, PMID:16407538, PMID:17855360,
PMID:22621900, and PMID:24523320.

The remaining UNDECIDED calls are nuclear-envelope style localization
annotations whose cached evidence does not allow direct full-text verification.
They should remain UNDECIDED rather than being removed from incomplete evidence.

The core function remains SORL1 cargo receptor activity: APP/BACE1 trafficking,
APP retention/retrieval in TGN/endosomal routes, amyloid-beta binding through the
VPS10P domain, and lysosomal routing of amyloid-beta peptides. Other cargoes
remain important but are best treated as non-core cargo-specific extensions of
the same sorting-receptor biology unless the review question is about that tissue
or pathway.

📄 View Raw YAML

id: Q92673
gene_symbol: SORL1
product_type: PROTEIN
status: COMPLETE
taxon:
  id: NCBITaxon:9606
  label: Homo sapiens
description: >-
  SORL1 encodes sortilin-related receptor, a large type I membrane receptor of the
  VPS10P/LDLR family that cycles through the trans-Golgi network, endosomes, recycling
  endosomes, and the plasma membrane. It binds and sorts cargo proteins and peptides,
  including amyloid precursor protein, amyloid-beta peptides, lipoprotein-related
  ligands, neurotrophic factors and receptors, insulin receptor, and cytokine-receptor
  complexes. In neurons, SORL1 retains and retrieves APP-containing complexes through
  Golgi/endosomal routes and can direct amyloid-beta toward lysosomal degradation,
  thereby reducing amyloidogenic APP processing. Other cargo-specific roles in lipid
  metabolism, trophic signaling, cytokine signaling, vascular smooth muscle behavior,
  and receptor recycling reflect the same receptor-mediated sorting biology in different
  cell contexts.
existing_annotations:
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: is_active_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0006892
    label: post-Golgi vesicle-mediated transport
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: involved_in
  review:
    summary: SorLA participates in vesicular transport from the TGN onward, dispatching itself and cargo to endosomes and the cell surface.
    action: ACCEPT
    reason: Core trafficking step in SorLA's sorting itinerary (IBA/IDA).
- term:
    id: GO:0016020
    label: membrane
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: is_active_in
  review:
    summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
    action: ACCEPT
    reason: Correct but generic; consistent with the transmembrane receptor.
- term:
    id: GO:0006622
    label: protein targeting to lysosome
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: involved_in
  review:
    summary: SorLA routes select cargo (LPL, GDNF, IL6, APOA5, amyloid-beta) to lysosomes for degradation, a defined branch of its sorting output.
    action: ACCEPT
    reason: Core degradative sorting branch of the receptor (IBA/IDA).
- term:
    id: GO:0045053
    label: protein retention in Golgi apparatus
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: involved_in
  review:
    summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
    action: ACCEPT
    reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0005041
    label: low-density lipoprotein particle receptor activity
  evidence_type: IEA
  original_reference_id: GO_REF:0000117
  qualifier: enables
  review:
    summary: SorLA functions as an LDL-receptor-family member with complement-type ligand-binding repeats that bind lipoprotein and LRPAP1/RAP ligands.
    action: ACCEPT
    reason: Core receptor activity defining SorLA's LDLR-family identity.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: IEA
  original_reference_id: GO_REF:0000120
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: IEA
  original_reference_id: GO_REF:0000108
  qualifier: located_in
  review:
    summary: SorLA routes select cargo (LPL, GDNF, APOA5, amyloid-beta) toward lysosomes for catabolism; the lysosome is a destination of its degradative sorting branch.
    action: KEEP_AS_NON_CORE
    reason: Terminal destination compartment downstream of SorLA's sorting decisions.
- term:
    id: GO:0005789
    label: endoplasmic reticulum membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
    action: KEEP_AS_NON_CORE
    reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0005829
    label: cytosol
  evidence_type: IEA
  original_reference_id: GO_REF:0000108
  qualifier: located_in
  review:
    summary: SorLA is a single-pass type I membrane protein; only a small RIP-released C-terminal fragment is cytosolic, so a bulk cytosol annotation overstates its distribution.
    action: MARK_AS_OVER_ANNOTATED
    reason: IEA cytosol overstates localization of an integral membrane protein.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
    action: ACCEPT
    reason: Membrane localization underpins SorLA's endosomal sorting function.
- term:
    id: GO:0016020
    label: membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000120
  qualifier: located_in
  review:
    summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
    action: ACCEPT
    reason: Correct but generic; consistent with the transmembrane receptor.
- term:
    id: GO:0030658
    label: transport vesicle membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: SorLA is carried in transport/secretory and endosome-to-TGN retrograde vesicles that shuttle it and its cargo between compartments.
    action: ACCEPT
    reason: 'Vesicle-membrane localization matches its trafficking itinerary (UniProt: retrograde vesicles).'
- term:
    id: GO:0031901
    label: early endosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
    action: ACCEPT
    reason: Membrane sub-localization supporting endosomal cargo sorting.
- term:
    id: GO:0032585
    label: multivesicular body membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: MVB-membrane localization is consistent with SorLA delivering cargo to the lysosomal degradation pathway.
    action: KEEP_AS_NON_CORE
    reason: Late-endosomal membrane, secondary to the core TGN/endosome retrieval role.
- term:
    id: GO:0055038
    label: recycling endosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
    action: ACCEPT
    reason: Membrane sub-localization for SorLA's recycling function.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:11821067
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:16174740
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:16407538
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:17326667
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:23333276
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:25643321
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:26053850
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:26858303
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:28265003
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:28514442
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:30679749
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:32296183
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:32814053
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:33961781
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0002024
    label: diet induced thermogenesis
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA's metabolic regulation of adipose energy expenditure extends to diet-induced thermogenesis, a systemic consequence of its ectodomain activity.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic energy-balance phenotype, downstream of metabolic signaling roles.
- term:
    id: GO:0005641
    label: nuclear envelope lumen
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: located_in
  review:
    summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
    action: UNDECIDED
    reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
- term:
    id: GO:0005771
    label: multivesicular body
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: located_in
  review:
    summary: SorLA is seen in MVBs/late endosomes as part of cargo routing toward lysosomal degradation (e.g. LPL, GDNF).
    action: KEEP_AS_NON_CORE
    reason: Downstream late-endosomal station of the degradative arm of SorLA sorting.
- term:
    id: GO:0006605
    label: protein targeting
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
    action: ACCEPT
    reason: 'Core process: directing proteins to their correct intracellular location.'
- term:
    id: GO:0010897
    label: negative regulation of triglyceride catabolic process
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: By trafficking LPL to lysosomes and degrading it, SorLA reduces lipase activity and triglyceride catabolism; a metabolic consequence of degradative sorting.
    action: KEEP_AS_NON_CORE
    reason: Lipid-metabolism effect downstream of SorLA-mediated LPL turnover.
- term:
    id: GO:0016477
    label: cell migration
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA modulates migration of smooth-muscle and myeloid cells through uPAR/PLAUR surface regulation, a pleiotropic consequence of its receptor trafficking.
    action: KEEP_AS_NON_CORE
    reason: Generic pleiotropic migration role secondary to ligand trafficking.
- term:
    id: GO:0019828
    label: aspartic-type endopeptidase inhibitor activity
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: enables
  review:
    summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
    action: MODIFY
    reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
    proposed_replacement_terms: &id001
    - id: GO:1902430
      label: negative regulation of amyloid-beta formation
- term:
    id: GO:0030514
    label: negative regulation of BMP signaling pathway
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: The SorLA N-terminal ectodomain inhibits BMP/Smad signaling in adipose tissue to restrain energy expenditure; a metabolic, ectodomain-mediated role.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic metabolic signaling effect of the soluble ectodomain (IEA/ISS).
- term:
    id: GO:0038020
    label: insulin receptor recycling
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA recycles internalized INSR via the Golgi to the surface, raising INSR surface levels in adipocytes; a tissue-specific instance of its recycling-sorting role.
    action: KEEP_AS_NON_CORE
    reason: Cargo-specific recycling event downstream of SorLA's general recycling activity.
- term:
    id: GO:0043025
    label: neuronal cell body
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: located_in
  review:
    summary: SorLA is enriched in neuronal soma, consistent with its high brain expression and role in neuronal cargo (APP, TrkB, GDNF) trafficking.
    action: KEEP_AS_NON_CORE
    reason: Cell-type-specific localization reflecting neuronal expression, not a distinct core compartment.
- term:
    id: GO:0045053
    label: protein retention in Golgi apparatus
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
    action: ACCEPT
    reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
- term:
    id: GO:0046628
    label: positive regulation of insulin receptor signaling pathway
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: By increasing INSR surface expression through recycling, SorLA strengthens insulin signaling in adipose tissue, a pleiotropic downstream consequence.
    action: KEEP_AS_NON_CORE
    reason: Signaling effect secondary to SorLA-mediated INSR recycling.
- term:
    id: GO:0050768
    label: negative regulation of neurogenesis
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA influences neuronal development consistent with its high brain expression and trafficking of neurotrophic cargo (BDNF/TrkB, GDNF).
    action: KEEP_AS_NON_CORE
    reason: Developmental role downstream of neurotrophic-receptor sorting (IEA/ISS).
- term:
    id: GO:0097356
    label: perinucleolar compartment
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: located_in
  review:
    summary: No evidence places this transmembrane sorting receptor in the perinucleolar compartment; the IEA call is implausible for SorLA.
    action: MARK_AS_OVER_ANNOTATED
    reason: Implausible nuclear sub-compartment for a membrane sorting receptor; electronic over-annotation.
- term:
    id: GO:0099638
    label: endosome to plasma membrane protein transport
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA promotes return of internalized receptors (INSR, HER2) from endosomes to the plasma membrane, a recycling arm of its sorting activity.
    action: ACCEPT
    reason: 'Core recycling route mediated by SorLA (UniProt: HER2/INSR recycling).'
- term:
    id: GO:1900168
    label: positive regulation of glial cell-derived neurotrophic factor production
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA controls regulated (vs constitutive) GDNF secretion by sorting GDNF and its receptors, influencing GDNF availability; a neurotrophic-specific role.
    action: KEEP_AS_NON_CORE
    reason: Cargo-specific neurotrophic effect downstream of GDNF sorting.
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:1902992
    label: negative regulation of amyloid precursor protein catabolic process
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
    action: ACCEPT
    reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
- term:
    id: GO:1902997
    label: negative regulation of neurofibrillary tangle assembly
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: SorLA's primary action is on APP/Abeta trafficking; an effect on tau neurofibrillary-tangle assembly is at best indirect and rests only on electronic/ISS inference.
    action: MARK_AS_OVER_ANNOTATED
    reason: Tau-tangle effect is speculative and indirect; electronic over-annotation.
- term:
    id: GO:1904179
    label: positive regulation of adipose tissue development
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: Through its metabolic actions (INSR recycling, BMP inhibition, LPL turnover) SorLA influences adipose tissue development; a pleiotropic systemic role.
    action: KEEP_AS_NON_CORE
    reason: Systemic metabolic/developmental role secondary to its trafficking functions.
- term:
    id: GO:1990845
    label: adaptive thermogenesis
  evidence_type: IEA
  original_reference_id: GO_REF:0000107
  qualifier: involved_in
  review:
    summary: Soluble SorLA represses adipose thermogenesis via BMP/Smad inhibition, shifting energy balance toward storage; a metabolic role of the ectodomain.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic metabolic phenotype of the shed ectodomain (IEA/ISS).
- term:
    id: GO:0038024
    label: cargo receptor activity
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: enables
  review:
    summary: "This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface."
    action: ACCEPT
    reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
- term:
    id: GO:0038024
    label: cargo receptor activity
  evidence_type: IDA
  original_reference_id: PMID:11294867
  qualifier: enables
  review:
    summary: "This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface."
    action: ACCEPT
    reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
- term:
    id: GO:0038024
    label: cargo receptor activity
  evidence_type: TAS
  original_reference_id: PMID:9157966
  qualifier: enables
  review:
    summary: "This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface."
    action: ACCEPT
    reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: EXP
  original_reference_id: PMID:11294867
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: EXP
  original_reference_id: PMID:16174740
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: EXP
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: EXP
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: EXP
  original_reference_id: PMID:21994944
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: EXP
  original_reference_id: PMID:11082041
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: EXP
  original_reference_id: PMID:15053742
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: EXP
  original_reference_id: PMID:16393139
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: EXP
  original_reference_id: PMID:16531402
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0005789
    label: endoplasmic reticulum membrane
  evidence_type: EXP
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
    action: KEEP_AS_NON_CORE
    reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
- term:
    id: GO:0005789
    label: endoplasmic reticulum membrane
  evidence_type: EXP
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: ER-membrane residence reflects the newly synthesized receptor before propeptide cleavage and export; not where SorLA performs cargo sorting.
    action: KEEP_AS_NON_CORE
    reason: Biosynthetic localization, peripheral to the endosome/TGN sorting role.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: EXP
  original_reference_id: PMID:11294867
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: EXP
  original_reference_id: PMID:14764453
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: EXP
  original_reference_id: PMID:15053742
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: EXP
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: EXP
  original_reference_id: PMID:31138794
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
    action: ACCEPT
    reason: Membrane localization underpins SorLA's endosomal sorting function.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:23333276
  qualifier: located_in
  review:
    summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
    action: ACCEPT
    reason: Membrane localization underpins SorLA's endosomal sorting function.
- term:
    id: GO:0031901
    label: early endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:17646382
  qualifier: located_in
  review:
    summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
    action: ACCEPT
    reason: Membrane sub-localization supporting endosomal cargo sorting.
- term:
    id: GO:0031901
    label: early endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
    action: ACCEPT
    reason: Membrane sub-localization supporting endosomal cargo sorting.
- term:
    id: GO:0031901
    label: early endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:31138794
  qualifier: located_in
  review:
    summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
    action: ACCEPT
    reason: Membrane sub-localization supporting endosomal cargo sorting.
- term:
    id: GO:0055038
    label: recycling endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
    action: ACCEPT
    reason: Membrane sub-localization for SorLA's recycling function.
- term:
    id: GO:0055038
    label: recycling endosome membrane
  evidence_type: EXP
  original_reference_id: PMID:31138794
  qualifier: located_in
  review:
    summary: Membrane localization to recycling endosomes is consistent with SorLA promoting endocytic recycling of internalized receptors.
    action: ACCEPT
    reason: Membrane sub-localization for SorLA's recycling function.
- term:
    id: GO:0001960
    label: negative regulation of cytokine-mediated signaling pathway
  evidence_type: IDA
  original_reference_id: PMID:26858303
  qualifier: involved_in
  review:
    summary: SorLA dampens cytokine signaling by internalizing and degrading IL6/CLCF1-CRLF1-CNTFR complexes, a downstream effect of its endocytic-degradative sorting.
    action: KEEP_AS_NON_CORE
    reason: Signaling modulation secondary to SorLA cargo internalization and turnover.
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: IDA
  original_reference_id: PMID:26858303
  qualifier: is_active_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0038024
    label: cargo receptor activity
  evidence_type: IDA
  original_reference_id: PMID:26858303
  qualifier: enables
  review:
    summary: "This is SorLA's defining activity: a VPS10P-domain cargo receptor that binds and sorts client proteins (APP, LPL, INSR, HER2, GDNF) among the TGN, endosomes and surface."
    action: ACCEPT
    reason: Core defining molecular function of SorLA as an intracellular sorting receptor.
- term:
    id: GO:1905146
    label: lysosomal protein catabolic process
  evidence_type: IDA
  original_reference_id: PMID:26858303
  qualifier: involved_in
  review:
    summary: Lysosomal degradation of SorLA-delivered cargo is a downstream consequence of its degradative sorting branch rather than the proximal sorting activity itself.
    action: KEEP_AS_NON_CORE
    reason: Downstream catabolic outcome of SorLA's lysosomal targeting.
- term:
    id: GO:0031901
    label: early endosome membrane
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: is_active_in
  review:
    summary: SorLA occupies the early-endosome membrane where its cytoplasmic domain recruits sorting adaptors for cargo retrieval.
    action: ACCEPT
    reason: Membrane sub-localization supporting endosomal cargo sorting.
- term:
    id: GO:0042147
    label: retrograde transport, endosome to Golgi
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: involved_in
  review:
    summary: SorLA's cytosolic tail engages retromer (VPS29) and GGA adaptors to retrieve itself and cargo from endosomes back to the TGN.
    action: ACCEPT
    reason: Central retrieval route defining SorLA's sorting behaviour (IDA).
- term:
    id: GO:0140318
    label: protein transporter activity
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: enables
  review:
    summary: SorLA physically carries bound cargo proteins between compartments, consistent with its cargo-receptor role in directing protein localization.
    action: ACCEPT
    reason: Captures the cargo-carrying activity central to SorLA's sorting function (IDA).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:0019828
    label: aspartic-type endopeptidase inhibitor activity
  evidence_type: IDA
  original_reference_id: PMID:16407538
  qualifier: enables
  review:
    summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
    action: MODIFY
    reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
    proposed_replacement_terms: *id001
- term:
    id: GO:0019828
    label: aspartic-type endopeptidase inhibitor activity
  evidence_type: IMP
  original_reference_id: PMID:17855360
  qualifier: enables
  review:
    summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
    action: MODIFY
    reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
    proposed_replacement_terms: *id001
- term:
    id: GO:0019828
    label: aspartic-type endopeptidase inhibitor activity
  evidence_type: IMP
  original_reference_id: PMID:21989385
  qualifier: enables
  review:
    summary: SorLA reduces BACE1-dependent APP cleavage by sequestering APP and interfering with BACE1-APP encounter; this is competitive cargo sorting, not direct aspartic-protease inhibition.
    action: MODIFY
    reason: Effect on BACE1 is indirect via trafficking; better captured as negative regulation of amyloid-beta formation.
    proposed_replacement_terms: *id001
- term:
    id: GO:1902992
    label: negative regulation of amyloid precursor protein catabolic process
  evidence_type: IDA
  original_reference_id: PMID:16407538
  qualifier: involved_in
  review:
    summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
    action: ACCEPT
    reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
- term:
    id: GO:1902992
    label: negative regulation of amyloid precursor protein catabolic process
  evidence_type: IMP
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
    action: ACCEPT
    reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
- term:
    id: GO:1902992
    label: negative regulation of amyloid precursor protein catabolic process
  evidence_type: IMP
  original_reference_id: PMID:21989385
  qualifier: involved_in
  review:
    summary: By retaining APP in the TGN and limiting its access to secretases, SorLA reduces amyloidogenic APP catabolism, the best-characterized physiological output of its sorting.
    action: ACCEPT
    reason: Hallmark functional consequence of SorLA's APP retention (IDA/IMP).
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:11294867
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:11294867
  qualifier: located_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0006898
    label: receptor-mediated endocytosis
  evidence_type: IDA
  original_reference_id: PMID:11294867
  qualifier: involved_in
  review:
    summary: SorLA mediates AP-2/clathrin-dependent internalization of surface ligands (uPA-PAI1, APOA5, IL6, HER2), feeding them into its endosomal sorting itinerary.
    action: ACCEPT
    reason: Core uptake step of SorLA's cargo-sorting cycle (IDA/TAS).
- term:
    id: GO:0007218
    label: neuropeptide signaling pathway
  evidence_type: IDA
  original_reference_id: PMID:11294867
  qualifier: involved_in
  review:
    summary: SorLA's interaction with neuropeptides (HA) links it to neuropeptide signaling, a downstream context of its ligand-binding capacity.
    action: KEEP_AS_NON_CORE
    reason: Signaling context downstream of SorLA neuropeptide binding.
- term:
    id: GO:0009986
    label: cell surface
  evidence_type: IDA
  original_reference_id: PMID:11294867
  qualifier: located_in
  review:
    summary: Surface-exposed SorLA binds ligands (e.g. APP, IL6, uPAR) and mediates their internalization; the surface pool also undergoes ectodomain shedding.
    action: ACCEPT
    reason: Cell-surface presence is required for SorLA receptor-mediated endocytosis (IDA).
- term:
    id: GO:0042923
    label: neuropeptide binding
  evidence_type: IPI
  original_reference_id: PMID:11082041
  qualifier: enables
  review:
    summary: The VPS10P domain binds neuropeptides such as head activator (HA) and neurotensin; a specific partner-binding activity peripheral to the core sorting role.
    action: KEEP_AS_NON_CORE
    reason: Partner-specific ligand binding; ancillary to the defining cargo-receptor activity.
- term:
    id: GO:0042923
    label: neuropeptide binding
  evidence_type: IPI
  original_reference_id: PMID:11294867
  qualifier: enables
  review:
    summary: The VPS10P domain binds neuropeptides such as head activator (HA) and neurotensin; a specific partner-binding activity peripheral to the core sorting role.
    action: KEEP_AS_NON_CORE
    reason: Partner-specific ligand binding; ancillary to the defining cargo-receptor activity.
- term:
    id: GO:0031333
    label: negative regulation of protein-containing complex assembly
  evidence_type: IMP
  original_reference_id: PMID:21989385
  qualifier: involved_in
  review:
    summary: By sequestering APP and modulating BACE1 access, SorLA can limit assembly of processing complexes; an indirect effect of its cargo-binding behaviour.
    action: KEEP_AS_NON_CORE
    reason: Indirect complex-assembly effect downstream of SorLA ligand sequestration (IMP).
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:21994944
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:21994944
  qualifier: located_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: IDA
  original_reference_id: PMID:21994944
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:1900168
    label: positive regulation of glial cell-derived neurotrophic factor production
  evidence_type: IDA
  original_reference_id: PMID:21994944
  qualifier: involved_in
  review:
    summary: SorLA controls regulated (vs constitutive) GDNF secretion by sorting GDNF and its receptors, influencing GDNF availability; a neurotrophic-specific role.
    action: KEEP_AS_NON_CORE
    reason: Cargo-specific neurotrophic effect downstream of GDNF sorting.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:30448281
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0006605
    label: protein targeting
  evidence_type: IDA
  original_reference_id: PMID:27322061
  qualifier: involved_in
  review:
    summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
    action: ACCEPT
    reason: 'Core process: directing proteins to their correct intracellular location.'
- term:
    id: GO:0010897
    label: negative regulation of triglyceride catabolic process
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: By trafficking LPL to lysosomes and degrading it, SorLA reduces lipase activity and triglyceride catabolism; a metabolic consequence of degradative sorting.
    action: KEEP_AS_NON_CORE
    reason: Lipid-metabolism effect downstream of SorLA-mediated LPL turnover.
- term:
    id: GO:0038020
    label: insulin receptor recycling
  evidence_type: IDA
  original_reference_id: PMID:27322061
  qualifier: involved_in
  review:
    summary: SorLA recycles internalized INSR via the Golgi to the surface, raising INSR surface levels in adipocytes; a tissue-specific instance of its recycling-sorting role.
    action: KEEP_AS_NON_CORE
    reason: Cargo-specific recycling event downstream of SorLA's general recycling activity.
- term:
    id: GO:0046628
    label: positive regulation of insulin receptor signaling pathway
  evidence_type: IDA
  original_reference_id: PMID:27322061
  qualifier: involved_in
  review:
    summary: By increasing INSR surface expression through recycling, SorLA strengthens insulin signaling in adipose tissue, a pleiotropic downstream consequence.
    action: KEEP_AS_NON_CORE
    reason: Signaling effect secondary to SorLA-mediated INSR recycling.
- term:
    id: GO:1904179
    label: positive regulation of adipose tissue development
  evidence_type: IDA
  original_reference_id: PMID:27322061
  qualifier: involved_in
  review:
    summary: Through its metabolic actions (INSR recycling, BMP inhibition, LPL turnover) SorLA influences adipose tissue development; a pleiotropic systemic role.
    action: KEEP_AS_NON_CORE
    reason: Systemic metabolic/developmental role secondary to its trafficking functions.
- term:
    id: GO:0002024
    label: diet induced thermogenesis
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: SorLA's metabolic regulation of adipose energy expenditure extends to diet-induced thermogenesis, a systemic consequence of its ectodomain activity.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic energy-balance phenotype, downstream of metabolic signaling roles.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:21385844
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005768
    label: endosome
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA cycles through endosomes, capturing internalized cargo (APP, LPL, INSR, HER2) for retrieval to the TGN or routing to lysosomes.
    action: ACCEPT
    reason: Endosome is a defining compartment of SorLA's retrieval/sorting itinerary.
- term:
    id: GO:0005769
    label: early endosome
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
    action: ACCEPT
    reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
- term:
    id: GO:0005771
    label: multivesicular body
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA is seen in MVBs/late endosomes as part of cargo routing toward lysosomal degradation (e.g. LPL, GDNF).
    action: KEEP_AS_NON_CORE
    reason: Downstream late-endosomal station of the degradative arm of SorLA sorting.
- term:
    id: GO:0005783
    label: endoplasmic reticulum
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA transits the ER during biosynthesis and maturation, but its sorting activity acts downstream in the TGN/endosomal system rather than in the ER.
    action: KEEP_AS_NON_CORE
    reason: Biosynthetic transit compartment, upstream of and peripheral to the core sorting cycle.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0006605
    label: protein targeting
  evidence_type: IDA
  original_reference_id: PMID:21385844
  qualifier: involved_in
  review:
    summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
    action: ACCEPT
    reason: 'Core process: directing proteins to their correct intracellular location.'
- term:
    id: GO:0030514
    label: negative regulation of BMP signaling pathway
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: The SorLA N-terminal ectodomain inhibits BMP/Smad signaling in adipose tissue to restrain energy expenditure; a metabolic, ectodomain-mediated role.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic metabolic signaling effect of the soluble ectodomain (IEA/ISS).
- term:
    id: GO:1990845
    label: adaptive thermogenesis
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: Soluble SorLA represses adipose thermogenesis via BMP/Smad inhibition, shifting energy balance toward storage; a metabolic role of the ectodomain.
    action: KEEP_AS_NON_CORE
    reason: Pleiotropic metabolic phenotype of the shed ectodomain (IEA/ISS).
- term:
    id: GO:0005041
    label: low-density lipoprotein particle receptor activity
  evidence_type: TAS
  original_reference_id: PMID:20005821
  qualifier: enables
  review:
    summary: SorLA functions as an LDL-receptor-family member with complement-type ligand-binding repeats that bind lipoprotein and LRPAP1/RAP ligands.
    action: ACCEPT
    reason: Core receptor activity defining SorLA's LDLR-family identity.
- term:
    id: GO:0000139
    label: Golgi membrane
  evidence_type: TAS
  original_reference_id: Reactome:R-HSA-8871506
  qualifier: located_in
  review:
    summary: As a single-pass type I membrane protein, SorLA sits in the Golgi/TGN membrane where it engages adaptors (GGA, AP-1) and retains cargo such as APP.
    action: ACCEPT
    reason: Correct membrane sub-localization for a transmembrane Golgi sorting receptor.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: TAS
  original_reference_id: Reactome:R-HSA-8871494
  qualifier: located_in
  review:
    summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
    action: ACCEPT
    reason: Membrane localization underpins SorLA's endosomal sorting function.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: TAS
  original_reference_id: Reactome:R-HSA-8871506
  qualifier: located_in
  review:
    summary: The transmembrane receptor is embedded in the endosomal limiting membrane, where its cytosolic tail binds retromer/GGA adaptors for sorting.
    action: ACCEPT
    reason: Membrane localization underpins SorLA's endosomal sorting function.
- term:
    id: GO:0050768
    label: negative regulation of neurogenesis
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: SorLA influences neuronal development consistent with its high brain expression and trafficking of neurotrophic cargo (BDNF/TrkB, GDNF).
    action: KEEP_AS_NON_CORE
    reason: Developmental role downstream of neurotrophic-receptor sorting (IEA/ISS).
- term:
    id: GO:1902997
    label: negative regulation of neurofibrillary tangle assembly
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: SorLA's primary action is on APP/Abeta trafficking; an effect on tau neurofibrillary-tangle assembly is at best indirect and rests only on electronic/ISS inference.
    action: MARK_AS_OVER_ANNOTATED
    reason: Tau-tangle effect is speculative and indirect; electronic over-annotation.
- term:
    id: GO:1902953
    label: positive regulation of ER to Golgi vesicle-mediated transport
  evidence_type: IMP
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: SorLA promotes anterograde ER-to-Golgi transport of cargo, complementing its retrieval activity in establishing correct cargo localization.
    action: ACCEPT
    reason: Trafficking-regulatory role consistent with its sorting function (IMP).
- term:
    id: GO:1902966
    label: positive regulation of protein localization to early endosome
  evidence_type: IMP
  original_reference_id: PMID:22621900
  qualifier: involved_in
  review:
    summary: SorLA drives delivery of cargo into early endosomes en route to retrieval or degradation, an integral step of its sorting cycle.
    action: ACCEPT
    reason: Direct manifestation of SorLA endosomal cargo sorting (IMP).
- term:
    id: GO:0001540
    label: amyloid-beta binding
  evidence_type: IDA
  original_reference_id: PMID:24523320
  qualifier: enables
  review:
    summary: SorLA directly binds amyloid-beta (and APP C99/Abeta40) via its ectodomain, enabling capture of newly produced Abeta for lysosomal clearance.
    action: ACCEPT
    reason: Defining ligand interaction underlying SorLA's anti-amyloidogenic sorting (IDA/IPI).
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:24001769
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005769
    label: early endosome
  evidence_type: IMP
  original_reference_id: PMID:22621900
  qualifier: located_in
  review:
    summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
    action: ACCEPT
    reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
- term:
    id: GO:0005769
    label: early endosome
  evidence_type: IDA
  original_reference_id: PMID:24001769
  qualifier: located_in
  review:
    summary: SorLA reaches early endosomes after internalization and directs cargo such as APOA5 and APP toward retrieval or onward lysosomal routing.
    action: ACCEPT
    reason: Early endosome is an early station of SorLA's sorting itinerary (IDA/IMP).
- term:
    id: GO:0005802
    label: trans-Golgi network
  evidence_type: IDA
  original_reference_id: PMID:24001769
  qualifier: located_in
  review:
    summary: SorLA is predominantly localized to the TGN, the compartment where it retains APP and from which it dispatches cargo to endosomes.
    action: ACCEPT
    reason: "TGN is the principal steady-state site of this sorting receptor (UniProt: 'predominantly in the TGN')."
- term:
    id: GO:0006622
    label: protein targeting to lysosome
  evidence_type: IDA
  original_reference_id: PMID:24523320
  qualifier: involved_in
  review:
    summary: SorLA routes select cargo (LPL, GDNF, IL6, APOA5, amyloid-beta) to lysosomes for degradation, a defined branch of its sorting output.
    action: ACCEPT
    reason: Core degradative sorting branch of the receptor (IBA/IDA).
- term:
    id: GO:0045732
    label: positive regulation of protein catabolic process
  evidence_type: IDA
  original_reference_id: PMID:24523320
  qualifier: involved_in
  review:
    summary: By routing clients (LPL, GDNF, IL6, amyloid-beta) to lysosomes, SorLA promotes their catabolism as a downstream output of degradative sorting.
    action: ACCEPT
    reason: Direct outcome of SorLA's lysosomal targeting branch (IDA).
- term:
    id: GO:0055037
    label: recycling endosome
  evidence_type: IMP
  original_reference_id: PMID:22621900
  qualifier: located_in
  review:
    summary: SorLA traffics through recycling endosomes, enabling cargo such as INSR and HER2 to be returned to the cell surface.
    action: ACCEPT
    reason: Recycling-endosome residence supports SorLA-mediated receptor recycling (IMP).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IDA
  original_reference_id: PMID:22621900
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IMP
  original_reference_id: PMID:24001769
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IMP
  original_reference_id: PMID:24523320
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:2001137
    label: positive regulation of endocytic recycling
  evidence_type: IMP
  original_reference_id: PMID:22621900
  qualifier: involved_in
  review:
    summary: SorLA enhances recycling of internalized cargo back to the surface, exemplified by HER2 recycling that sustains PI3K-dependent signaling.
    action: ACCEPT
    reason: Core recycling-promoting activity of the sorting receptor (IMP).
- term:
    id: GO:0001540
    label: amyloid-beta binding
  evidence_type: IPI
  original_reference_id: PMID:16407538
  qualifier: enables
  review:
    summary: SorLA directly binds amyloid-beta (and APP C99/Abeta40) via its ectodomain, enabling capture of newly produced Abeta for lysosomal clearance.
    action: ACCEPT
    reason: Defining ligand interaction underlying SorLA's anti-amyloidogenic sorting (IDA/IPI).
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:17855360
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005641
    label: nuclear envelope lumen
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
    action: UNDECIDED
    reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
- term:
    id: GO:0005641
    label: nuclear envelope lumen
  evidence_type: IDA
  original_reference_id: PMID:21989385
  qualifier: located_in
  review:
    summary: RIP releases a SorLA C-terminal fragment that localizes to the nucleus, but a specific nuclear-envelope-lumen assignment is not clearly supported by the evidence reviewed.
    action: UNDECIDED
    reason: Cannot verify the nuclear-envelope-lumen call; nuclear targeting is only of a cleaved fragment.
- term:
    id: GO:0005783
    label: endoplasmic reticulum
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: SorLA transits the ER during biosynthesis and maturation, but its sorting activity acts downstream in the TGN/endosomal system rather than in the ER.
    action: KEEP_AS_NON_CORE
    reason: Biosynthetic transit compartment, upstream of and peripheral to the core sorting cycle.
- term:
    id: GO:0006605
    label: protein targeting
  evidence_type: IDA
  original_reference_id: PMID:16407538
  qualifier: involved_in
  review:
    summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
    action: ACCEPT
    reason: 'Core process: directing proteins to their correct intracellular location.'
- term:
    id: GO:0006892
    label: post-Golgi vesicle-mediated transport
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: SorLA participates in vesicular transport from the TGN onward, dispatching itself and cargo to endosomes and the cell surface.
    action: ACCEPT
    reason: Core trafficking step in SorLA's sorting itinerary (IBA/IDA).
- term:
    id: GO:0031267
    label: small GTPase binding
  evidence_type: IPI
  original_reference_id: PMID:17855360
  qualifier: enables
  review:
    summary: Reported binding to a small GTPase (e.g. RHOH) is a specific partner interaction not central to SorLA's cargo-sorting mechanism.
    action: KEEP_AS_NON_CORE
    reason: Specific partner binding, peripheral to the core sorting function (IPI).
- term:
    id: GO:0031985
    label: Golgi cisterna
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: located_in
  review:
    summary: IDA localization to Golgi cisternae is consistent with SorLA's residence in the Golgi stack during cargo sorting and retrieval.
    action: ACCEPT
    reason: Cisternal localization refines the core Golgi pool of this sorting receptor.
- term:
    id: GO:0034067
    label: protein localization to Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: By capturing and retrieving cargo to the Golgi/TGN, SorLA establishes the Golgi localization of clients such as APP.
    action: ACCEPT
    reason: Direct consequence of SorLA's retrieval/retention activity (IDA).
- term:
    id: GO:0045053
    label: protein retention in Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: SorLA retains APP (and other cargo) in the TGN, the key event that limits APP's transit to amyloidogenic late-endosomal processing.
    action: ACCEPT
    reason: Defining sorting outcome that links SorLA to reduced amyloidogenesis (IBA/IDA).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IDA
  original_reference_id: PMID:16407538
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IMP
  original_reference_id: PMID:17855360
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:1902430
    label: negative regulation of amyloid-beta formation
  evidence_type: IMP
  original_reference_id: PMID:21989385
  qualifier: involved_in
  review:
    summary: SorLA lowers Abeta40/Abeta42 generation by sequestering APP from amyloidogenic processing and routing Abeta to lysosomes, the basis of its AD-protective role.
    action: ACCEPT
    reason: Central disease-relevant output directly downstream of SorLA APP sorting (IDA/IMP).
- term:
    id: GO:0070062
    label: extracellular exosome
  evidence_type: HDA
  original_reference_id: PMID:19056867
  qualifier: located_in
  review:
    summary: HDA detection of SorLA in exosomes is consistent with proteomic surveys; it is incidental to the receptor's intracellular sorting function.
    action: KEEP_AS_NON_CORE
    reason: High-throughput proteomic localization; not a core functional site.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:14764453
  qualifier: enables
  review:
    summary: Bare 'protein binding' (n=21 IPI) records many partner interactions but conveys no specific molecular function for this cargo receptor.
    action: MARK_AS_OVER_ANNOTATED
    reason: Uninformative generic MF; specific ligand-binding terms already capture SorLA's activity.
- term:
    id: GO:0005576
    label: extracellular region
  evidence_type: IDA
  original_reference_id: PMID:14764453
  qualifier: located_in
  review:
    summary: ADAM17-mediated shedding releases the soluble SorLA ectodomain (sLR11) into the extracellular space, where it acts as a secreted ligand-binding fragment.
    action: KEEP_AS_NON_CORE
    reason: Reflects shed soluble ectodomain, a secondary product of the membrane receptor.
- term:
    id: GO:0014910
    label: regulation of smooth muscle cell migration
  evidence_type: IDA
  original_reference_id: PMID:14764453
  qualifier: involved_in
  review:
    summary: The shed SorLA ectodomain promotes smooth-muscle migration via increased uPAR surface display, a pleiotropic vascular role of the soluble fragment.
    action: KEEP_AS_NON_CORE
    reason: Vascular phenotype downstream of ectodomain/uPAR handling, not core sorting.
- term:
    id: GO:0016020
    label: membrane
  evidence_type: IDA
  original_reference_id: PMID:14764453
  qualifier: located_in
  review:
    summary: Generic membrane association reflects SorLA's nature as an integral single-pass type I membrane protein distributed across the secretory/endosomal system.
    action: ACCEPT
    reason: Correct but generic; consistent with the transmembrane receptor.
- term:
    id: GO:0005768
    label: endosome
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: located_in
  review:
    summary: SorLA cycles through endosomes, capturing internalized cargo (APP, LPL, INSR, HER2) for retrieval to the TGN or routing to lysosomes.
    action: ACCEPT
    reason: Endosome is a defining compartment of SorLA's retrieval/sorting itinerary.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:16174740
  qualifier: located_in
  review:
    summary: SorLA resides in the Golgi where, with AP-1, it executes TGN-endosome sorting; a major steady-state pool of the receptor is Golgi-associated.
    action: ACCEPT
    reason: Golgi is a core compartment for SorLA's cargo-sorting cycle (UniProt subcellular location).
- term:
    id: GO:0006605
    label: protein targeting
  evidence_type: IMP
  original_reference_id: PMID:16174740
  qualifier: involved_in
  review:
    summary: SorLA directs bound client proteins to specific destinations (TGN retention, lysosomal degradation or surface recycling), the essence of its sorting role.
    action: ACCEPT
    reason: 'Core process: directing proteins to their correct intracellular location.'
- term:
    id: GO:0030169
    label: low-density lipoprotein particle binding
  evidence_type: IPI
  original_reference_id: PMID:17326667
  qualifier: enables
  review:
    summary: Through its LDLR-class complement repeats SorLA binds LDL particles, reflecting its membership in the LDL-receptor gene family.
    action: ACCEPT
    reason: Direct ligand-binding activity characteristic of this LDLR-family receptor (IPI).
- term:
    id: GO:0005886
    label: plasma membrane
  evidence_type: TAS
  original_reference_id: PMID:9157966
  qualifier: located_in
  review:
    summary: A minor surface pool of SorLA captures extracellular ligands and undergoes AP-2-dependent endocytosis; surface levels are low but functionally important.
    action: ACCEPT
    reason: Cell-surface localization is the entry point for SorLA's endocytic sorting cycle.
- term:
    id: GO:0006898
    label: receptor-mediated endocytosis
  evidence_type: TAS
  original_reference_id: PMID:9157966
  qualifier: involved_in
  review:
    summary: SorLA mediates AP-2/clathrin-dependent internalization of surface ligands (uPA-PAI1, APOA5, IL6, HER2), feeding them into its endosomal sorting itinerary.
    action: ACCEPT
    reason: Core uptake step of SorLA's cargo-sorting cycle (IDA/TAS).
references:
- id: GO_REF:0000024
  title: Manual transfer of experimentally-verified manual GO annotation data to orthologs by curator judgment of sequence similarity
  findings: []
- id: GO_REF:0000033
  title: Annotation inferences using phylogenetic trees
  findings: []
- id: GO_REF:0000044
  title: Gene Ontology annotation based on UniProtKB/Swiss-Prot Subcellular Location vocabulary mapping, accompanied by conservative changes to GO terms applied by UniProt
  findings: []
- id: GO_REF:0000107
  title: Automatic transfer of experimentally verified manual GO annotation data to orthologs using Ensembl Compara
  findings: []
- id: GO_REF:0000108
  title: Automatic assignment of GO terms using logical inference, based on on inter-ontology links
  findings: []
- id: GO_REF:0000117
  title: Electronic Gene Ontology annotations created by ARBA machine learning models
  findings: []
- id: GO_REF:0000120
  title: Combined Automated Annotation using Multiple IEA Methods
  findings: []
- id: PMID:11082041
  title: Ectodomain shedding, translocation and synthesis of SorLA are stimulated by its ligand head activator.
  findings: []
- id: PMID:11294867
  title: Activation and functional characterization of the mosaic receptor SorLA/LR11.
  findings: []
- id: PMID:11821067
  title: The sorLA cytoplasmic domain interacts with GGA1 and -2 and defines minimum requirements for GGA binding.
  findings: []
- id: PMID:14764453
  title: LR11, an LDL receptor gene family member, is a novel regulator of smooth muscle cell migration.
  findings: []
- id: PMID:15053742
  title: The mosaic receptor sorLA/LR11 binds components of the plasminogen-activating system and platelet-derived growth factor-BB similarly to LRP1 (low-density lipoprotein receptor-related protein), but mediates slow internalization of bound ligand.
  findings: []
- id: PMID:16174740
  title: Neuronal sorting protein-related receptor sorLA/LR11 regulates processing of the amyloid precursor protein.
  findings: []
  reference_review:
    relevance: HIGH
    correctness: VERIFIED
    review_notes: Cached abstract/title verified; supports SORL1 as an APP sorting receptor that reduces amyloidogenic peptide formation.
- id: PMID:16393139
  title: Tumour necrosis factor alpha-converting enzyme mediates ectodomain shedding of Vps10p-domain receptor family members.
  findings: []
- id: PMID:16407538
  title: Interaction of the cytosolic domains of sorLA/LR11 with the amyloid precursor protein (APP) and beta-secretase beta-site APP-cleaving enzyme.
  findings: []
  reference_review:
    relevance: HIGH
    correctness: VERIFIED
    review_notes: Cached abstract/title verified; supports the trafficking mechanism by which SORL1 prevents BACE-APP interactions rather than directly inhibiting BACE catalysis.
- id: PMID:16531402
  title: SorLA signaling by regulated intramembrane proteolysis.
  findings: []
- id: PMID:17326667
  title: Apolipoprotein A-V interaction with members of the low density lipoprotein receptor gene family.
  findings: []
- id: PMID:17646382
  title: Sorting by the cytoplasmic domain of the amyloid precursor protein binding receptor SorLA.
  findings: []
- id: PMID:17855360
  title: SorLA/LR11 regulates processing of amyloid precursor protein via interaction with adaptors GGA and PACS-1.
  findings: []
  reference_review:
    relevance: HIGH
    correctness: VERIFIED
    review_notes: Cached abstract/title verified; supports SORL1 retention of APP in trans-Golgi compartments through GGA/PACS-1-dependent routing.
- id: PMID:19056867
  title: Large-scale proteomics and phosphoproteomics of urinary exosomes.
  findings: []
- id: PMID:20005821
  title: Overexpression of low-density lipoprotein receptor in the brain markedly inhibits amyloid deposition and increases extracellular A beta clearance.
  findings: []
- id: PMID:21385844
  title: SorLA regulates the activity of lipoprotein lipase by intracellular trafficking.
  findings: []
- id: PMID:21989385
  title: Quantitative modelling of amyloidogenic processing and its influence by SORLA in Alzheimer's disease.
  findings: []
- id: PMID:21994944
  title: Sorting protein-related receptor SorLA controls regulated secretion of glial cell line-derived neurotrophic factor.
  findings: []
- id: PMID:22621900
  title: GGA1-mediated endocytic traffic of LR11/SorLA alters APP intracellular distribution and amyloid-β production.
  findings: []
  reference_review:
    relevance: HIGH
    correctness: VERIFIED
    review_notes: Cached abstract/title verified; supports LR11/SORL1 endocytic trafficking as a regulator of APP intracellular distribution and amyloid-beta levels.
- id: PMID:23333276
  title: SorLA controls neurotrophic activity by sorting of GDNF and its receptors GFRα1 and RET.
  findings: []
- id: PMID:24001769
  title: SORLA-dependent and -independent functions for PACS1 in control of amyloidogenic processes.
  findings: []
- id: PMID:24523320
  title: Lysosomal sorting of amyloid-β by the SORLA receptor is impaired by a familial Alzheimer's disease mutation.
  findings: []
  reference_review:
    relevance: HIGH
    correctness: VERIFIED
    review_notes: Cached abstract/title verified; supports SORL1 amyloid-beta binding through the VPS10P domain and lysosomal targeting of nascent amyloid-beta peptides.
- id: PMID:25643321
  title: Structural basis for amyloidogenic peptide recognition by sorLA.
  findings: []
- id: PMID:26053850
  title: The Golgi-Localized γ-Ear-Containing ARF-Binding (GGA) Proteins Alter Amyloid-β Precursor Protein (APP) Processing through Interaction of Their GAE Domain with the Beta-Site APP Cleaving Enzyme 1 (BACE1).
  findings: []
- id: PMID:26858303
  title: Cytokine-Like Factor 1, an Essential Facilitator of Cardiotrophin-Like Cytokine:Ciliary Neurotrophic Factor Receptor α Signaling and sorLA-Mediated Turnover.
  findings: []
- id: PMID:27322061
  title: SORLA facilitates insulin receptor signaling in adipocytes and exacerbates obesity.
  findings: []
- id: PMID:28265003
  title: SorLA in Interleukin-6 Signaling and Turnover.
  findings: []
- id: PMID:28514442
  title: Architecture of the human interactome defines protein communities and disease networks.
  findings: []
- id: PMID:30448281
  title: Soluble LR11 competes with amyloid β in binding to cerebrospinal fluid-high-density lipoprotein.
  findings: []
- id: PMID:30679749
  title: HSPA12A targets the cytoplasmic domain and affects the trafficking of the Amyloid Precursor Protein receptor SorLA.
  findings: []
- id: PMID:31138794
  title: SORLA regulates endosomal trafficking and oncogenic fitness of HER2.
  findings: []
- id: PMID:32296183
  title: A reference map of the human binary protein interactome.
  findings: []
- id: PMID:32814053
  title: Interactome Mapping Provides a Network of Neurodegenerative Disease Proteins and Uncovers Widespread Protein Aggregation in Affected Brains.
  findings: []
- id: PMID:33961781
  title: Dual proteome-scale networks reveal cell-specific remodeling of the human interactome.
  findings: []
- id: PMID:9157966
  title: A novel mosaic protein containing LDL receptor elements is highly conserved in humans and chickens.
  findings: []
- id: Reactome:R-HSA-8871494
  title: SORL1 binds APP(18-770)
  findings: []
- id: Reactome:R-HSA-8871506
  title: SORL1 transports APP(18-770) from endosome lumen to Golgi lumen
  findings: []
core_functions:
- molecular_function:
    id: GO:0038024
    label: cargo receptor activity
  description: >-
    SORL1/SORLA is a type I membrane cargo receptor that binds APP and other ligands
    and routes them through trans-Golgi, endosomal, recycling, lysosomal, and plasma-membrane
    pathways via adaptor-dependent sorting.
  directly_involved_in:
  - id: GO:0006605
    label: protein targeting
  - id: GO:0045053
    label: protein retention in Golgi apparatus
  - id: GO:0042147
    label: retrograde transport, endosome to Golgi
  - id: GO:0006898
    label: receptor-mediated endocytosis
  - id: GO:2001137
    label: positive regulation of endocytic recycling
  locations:
  - id: GO:0005802
    label: trans-Golgi network
  - id: GO:0000139
    label: Golgi membrane
  - id: GO:0010008
    label: endosome membrane
  - id: GO:0031901
    label: early endosome membrane
  - id: GO:0055038
    label: recycling endosome membrane
  - id: GO:0005886
    label: plasma membrane
  supported_by:
  - reference_id: PMID:16174740
    supporting_text: >-
      sorLA acts as a sorting receptor that protects APP from processing into Abeta
      and thereby reduces the burden of amyloidogenic peptide formation
  - reference_id: PMID:17855360
    supporting_text: >-
      sorLA acts as a retention factor for APP in trans-Golgi compartments/trans-Golgi
      network, preventing release of the precursor into regular processing pathways
  - reference_id: PMID:16407538
    supporting_text: >-
      sorLA acts as a trafficking receptor that prevents BACE-APP interactions and
      hence BACE cleavage of APP
- molecular_function:
    id: GO:0001540
    label: amyloid-beta binding
  description: >-
    SORL1 binds amyloid-beta peptides through its VPS10P domain and can route nascent
    amyloid-beta toward lysosomal catabolism, complementing its APP-retention role
    in lowering amyloidogenic peptide production.
  directly_involved_in:
  - id: GO:0006622
    label: protein targeting to lysosome
  - id: GO:0045732
    label: positive regulation of protein catabolic process
  - id: GO:1902430
    label: negative regulation of amyloid-beta formation
  - id: GO:1902992
    label: negative regulation of amyloid precursor protein catabolic process
  locations:
  - id: GO:0005802
    label: trans-Golgi network
  - id: GO:0010008
    label: endosome membrane
  - id: GO:0031901
    label: early endosome membrane
  supported_by:
  - reference_id: PMID:24523320
    supporting_text: >-
      this receptor to direct lysosomal targeting of nascent Aβ peptides
  - reference_id: PMID:24523320
    supporting_text: >-
      Aβ binds to the amino-terminal VPS10P domain of SORLA
  - reference_id: PMID:22621900
    supporting_text: >-
      LR11 modulates Aβ levels by promoting APP traffic to the endocytic recycling
      compartment
proposed_new_terms: []
suggested_questions:
- question: >-
    Should GO add a more specific APP/amyloid-beta cargo sorting receptor activity
    term for SORL1-like receptor functions, or is cargo receptor activity plus cargo-specific
    binding/process annotations sufficient?
  experts:
  - GO receptor activity curators
  - Alzheimer trafficking experts
- question: >-
    Which SORL1 cargo-specific phenotypes, such as insulin receptor recycling, GDNF/GFRA1
    turnover, IL6-family cytokine regulation, or HER2 recycling, should be retained
    as non-core versus represented only through generic cargo sorting?
  experts:
  - VPS10P-domain receptor experts
  - GO annotation curators
- question: >-
    Are nuclear-envelope or perinucleolar localization annotations for SORL1 supported
    by direct full-text evidence, or are they artifacts of perinuclear Golgi/endosomal
    localization descriptions?
  experts:
  - cellular trafficking curators
  - SORL1 cell biology experts
suggested_experiments:
- description: >-
    Use endogenous SORL1 knock-in/knockout neurons to compare APP, BACE1, and nascent
    amyloid-beta routing across TGN, early endosome, recycling endosome, and lysosomal
    compartments.
  hypothesis: >-
    SORL1 lowers amyloidogenic processing primarily by retaining or retrieving APP/BACE1-containing
    cargo away from compartments that favor BACE cleavage and by routing nascent amyloid-beta
    to lysosomes.
  experiment_type: live-cell cargo trafficking and compartment-resolved APP processing assay
- description: >-
    Introduce Alzheimer-associated SORL1 variants into the endogenous locus and assay
    cargo binding, adaptor recruitment, endosome-to-Golgi retrieval, and A-beta lysosomal
    targeting.
  hypothesis: >-
    Pathogenic SORL1 variants impair specific cargo-binding or adaptor-dependent trafficking
    steps without eliminating the general sorting-receptor scaffold.
  experiment_type: endogenous variant knock-in functional rescue assay
- description: >-
    Compare APP/A-beta, insulin receptor, GDNF/GFRA1, IL6-family cytokine complexes,
    and HER2 as parallel cargoes in matched cellular systems.
  hypothesis: >-
    SORL1 uses a shared trafficking architecture for many cargoes, but Alzheimer-relevant
    APP/A-beta handling depends on cargo-specific binding and adaptor requirements.
  experiment_type: multi-cargo receptor sorting assay