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.
| 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.
Proposed replacements:
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.
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|
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.
Proposed replacements:
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.
Proposed replacements:
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.
Proposed replacements:
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).
|
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
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
just fetch-gene-pmids human SORL1 completed successfully; all 34 PMID-backed publication caches were present after refresh.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.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.
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.protein binding annotations as over-annotated because the useful biology is specific cargo receptor activity, amyloid-beta binding, lipoprotein binding, or cargo-specific sorting.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.
cargo receptor activity captures the receptor class, but does not distinguish APP/amyloid-beta cargo sorting from other SORL1 cargo programs.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.
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