Rab7

UniProt ID: P51150
Organism: Mus musculus
Review Status: COMPLETE
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Gene Description

Mouse Rab7 (official symbol Rab7a; UniProt P51150) is a Rab-family small GTPase (EC 3.6.5.2) and the direct ortholog of human RAB7A. It is the master regulator of the late endocytic pathway, cycling between an inactive GDP-bound (cytosolic) state and an active GTP-bound (membrane-associated) state. GTP-loading by the Mon1-Ccz1 GEF on maturing endosomes (the Rab5-to-Rab7 conversion) recruits effectors including RILP, the HOPS tethering complex, retromer, FYCO1, PLEKHM1 and ORP1L to drive early-to-late endosome maturation, late endosome-lysosome fusion, autophagosome-lysosome fusion, phagosome maturation, retrograde endosome-to-Golgi transport and lysosome positioning. It is inactivated by TBC-domain GAPs. Mouse studies have established physiological roles in lipophagy and beta-adrenergic lipolysis in adipocytes, synaptic AMPA-receptor trafficking during long-term depression in neurons, osteoclast ruffled-border function and bone resorption, and secretory-lysosome trafficking. In vivo work in mouse liver using LysoTag mice further confirms Rab7 as a mediator of late endosomal maturation, where its loss diverts cargo away from the degradative route and increases the cytosolic escape of lipid nanoparticles (PMID:41814093).

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005764 lysosome
IBA
GO_REF:0000033
ACCEPT
Summary: Rab7 is a canonical lysosomal marker and effector platform. UniProt lists lysosome membrane localization with experimental support across orthologs.
Reason: Core localization where Rab7 exerts its regulatory function in fusion and cargo degradation; supported by phylogenetic conservation and experimental data in mouse.
GO:0005770 late endosome
IBA
GO_REF:0000033
ACCEPT
Summary: Late endosome is the canonical site of active Rab7, where it is GTP-loaded by Mon1-Ccz1 during the Rab5-to-Rab7 conversion.
Reason: Defining core localization for Rab7, confirmed by many mouse IDA studies in this review.
GO:0008333 endosome to lysosome transport
IBA
GO_REF:0000033
ACCEPT
Summary: The core biological process for Rab7: it controls maturation of late endosomes and their fusion with lysosomes for cargo degradation. In vivo mouse liver data confirm Rab7 as a mediator of late endosomal maturation.
Reason: Core biological function, strongly supported across orthologs and directly in mouse.
Supporting Evidence:
PMID:41814093
Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape.
file:mouse/Rab7/Rab7-deep-research-manual.md
Manual synthesis of mouse Rab7/Rab7a literature supports the conserved late-endosome maturation and endosome-to-lysosome routing function.
GO:0045335 phagocytic vesicle
IBA
GO_REF:0000033
ACCEPT
Summary: Rab7 is recruited to phagosomes and regulates phagosome maturation.
Reason: Core function in phagosome maturation; conserved across the Rab7 ortholog group.
GO:0090385 phagosome-lysosome fusion
IBA
GO_REF:0000033
ACCEPT
Summary: Rab7 is required for phagosome-lysosome fusion and phagolysosome maturation.
Reason: Core function in innate immunity / pathogen degradation, conserved across orthologs.
GO:0000421 autophagosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to autophagosome membranes and is required for autophagosome-lysosome fusion.
Reason: Core localization for the autophagy role of Rab7; consistent with phagophore assembly site annotation in this review.
GO:0003924 GTPase activity
IEA
GO_REF:0000002
ACCEPT
Summary: Rab7 has intrinsic GTPase activity (EC 3.6.5.2) hydrolyzing GTP to GDP, accelerated by TBC-domain GAPs.
Reason: Core molecular function, fundamental to the molecular-switch behavior; directly demonstrated for mouse Rab7 (PMID:16855591).
GO:0003925 G protein activity
IEA
GO_REF:0000003
ACCEPT
Summary: Rab7 functions as a G protein, cycling between active GTP-bound and inactive GDP-bound states to regulate membrane trafficking.
Reason: Accurate core molecular function for a Rab-family small GTPase.
GO:0005525 GTP binding
IEA
GO_REF:0000002
ACCEPT
Summary: GTP binding activates Rab7 and enables membrane association and effector recruitment.
Reason: Core molecular function of the GTPase cycle.
GO:0005765 lysosomal membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to lysosomal membranes as a peripheral membrane protein on the cytoplasmic face.
Reason: Core localization, confirmed experimentally in mouse (e.g. PMID:28063257).
GO:0005770 late endosome
IEA
GO_REF:0000117
ACCEPT
Summary: Late endosome localization predicted by ARBA, consistent with abundant experimental evidence.
Reason: Canonical core localization.
GO:0005811 lipid droplet
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to lipid droplets during lipophagy, directly demonstrated in mouse adipocytes.
Reason: Valid localization related to lipophagy; experimentally supported in mouse (PMID:23708524).
GO:0010008 endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to endosome membranes, primarily late endosome membranes.
Reason: Accurate localization; the more specific late endosome membrane term is also annotated.
GO:0030670 phagocytic vesicle membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to phagosomal membranes during phagosome maturation.
Reason: Core localization for the phagosome maturation function.
GO:0031410 cytoplasmic vesicle
IEA
GO_REF:0000044
ACCEPT
Summary: Rab7 localizes to multiple types of cytoplasmic vesicles.
Reason: Accurate but general; more specific vesicle annotations are present.
GO:0031902 late endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Late endosome membrane is the canonical site for active Rab7.
Reason: Core localization where Rab7 recruits effectors for maturation and transport.
GO:0031966 mitochondrial membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Rab7 can be recruited to mitochondrial membranes during mitophagy and at ER-mitochondria/endosome contact sites.
Reason: Context-dependent localization during mitophagy rather than constitutive mitochondrial residence.
GO:0033162 melanosome membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Rab7 localizes to melanosome membranes; melanosomes are lysosome-related organelles.
Reason: Cell-type-specific localization relevant to melanocyte biology and lysosome-related organelle biogenesis.
GO:0098588 bounding membrane of organelle
IEA
GO_REF:0000117
ACCEPT
Summary: Rab7 localizes to the bounding membranes of various organelles as a peripheral membrane protein.
Reason: Accurate general localization consistent with Rab7 membrane-association pattern.
GO:0005765 lysosomal membrane
ISO
GO_REF:0000096
ACCEPT
Summary: Lysosomal membrane localization transferred from experimentally characterized orthologs.
Reason: Core localization, well supported.
GO:0005765 lysosomal membrane
ISO
GO_REF:0000119
ACCEPT
Summary: Lysosomal membrane localization transferred from human ortholog.
Reason: Core localization, consistent with mouse experimental data.
GO:0031902 late endosome membrane
ISO
GO_REF:0000096
ACCEPT
Summary: Late endosome membrane localization transferred from orthologs.
Reason: Core localization.
GO:0031902 late endosome membrane
ISO
GO_REF:0000119
ACCEPT
Summary: Late endosome membrane localization transferred from human ortholog.
Reason: Core localization.
GO:0033162 melanosome membrane
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Melanosome membrane localization transferred from human ortholog.
Reason: Cell-type-specific localization in melanocytes (lysosome-related organelle).
GO:0003924 GTPase activity
ISO
GO_REF:0000119
ACCEPT
Summary: GTPase activity transferred from human ortholog; also directly demonstrated for mouse Rab7.
Reason: Core molecular function.
GO:0003925 G protein activity
ISO
GO_REF:0000119
ACCEPT
Summary: G protein (molecular switch) activity transferred from human ortholog.
Reason: Core molecular function for a Rab GTPase.
GO:0005525 GTP binding
ISO
GO_REF:0000096
ACCEPT
Summary: GTP binding transferred from experimentally characterized orthologs.
Reason: Core molecular function.
GO:0005525 GTP binding
ISO
GO_REF:0000119
ACCEPT
Summary: GTP binding transferred from human ortholog.
Reason: Core molecular function.
GO:0005739 mitochondrion
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Mitochondrial association during mitophagy / at contact sites, transferred from human ortholog.
Reason: Context-dependent localization, not constitutive.
GO:0005764 lysosome
ISO
GO_REF:0000119
ACCEPT
Summary: Lysosome colocalization transferred from human ortholog.
Reason: Core localization.
GO:0005764 lysosome
ISO
GO_REF:0000119
ACCEPT
Summary: Lysosome localization transferred from human ortholog.
Reason: Core localization.
GO:0005765 lysosomal membrane
ISO
GO_REF:0000119
ACCEPT
Summary: Active Rab7 functions on the lysosomal membrane (ortholog transfer).
Reason: Core site of action.
GO:0005770 late endosome
ISO
GO_REF:0000119
ACCEPT
Summary: Late endosome colocalization transferred from human ortholog.
Reason: Core localization.
GO:0005770 late endosome
ISO
GO_REF:0000096
ACCEPT
Summary: Late endosome localization transferred from orthologs.
Reason: Canonical core localization.
GO:0005770 late endosome
ISO
GO_REF:0000119
ACCEPT
Summary: Late endosome localization transferred from human ortholog.
Reason: Canonical core localization.
GO:0006622 protein targeting to lysosome
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 targets cargo proteins to the lysosome for degradation (ortholog transfer).
Reason: Core function in degradative trafficking.
GO:0007174 epidermal growth factor catabolic process
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 mediates EGF/EGFR degradation through the endolysosomal pathway.
Reason: Specific instance of the general endosome-to-lysosome degradative function.
GO:0008333 endosome to lysosome transport
ISO
GO_REF:0000119
ACCEPT
Summary: Endosome-to-lysosome transport transferred from human ortholog.
Reason: Core biological function.
GO:0009617 response to bacterium
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 participates in responses to intracellular bacteria via phagosome maturation.
Reason: Downstream physiological consequence of the core phagosome maturation function.
GO:0010008 endosome membrane
ISO
GO_REF:0000119
ACCEPT
Summary: Active Rab7 functions on the endosome membrane (ortholog transfer).
Reason: Core site of action.
GO:0010008 endosome membrane
ISO
GO_REF:0000119
ACCEPT
Summary: Endosome membrane localization transferred from human ortholog.
Reason: Core localization.
GO:0019003 GDP binding
ISO
GO_REF:0000096
ACCEPT
Summary: Rab7 binds GDP in its inactive cytosolic state (ortholog transfer).
Reason: Core molecular function of the GTPase cycle.
GO:0019003 GDP binding
ISO
GO_REF:0000119
ACCEPT
Summary: GDP binding transferred from human ortholog.
Reason: Core molecular function.
GO:0019076 viral release from host cell
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 endolysosomal function is co-opted during certain viral life cycles (e.g. HIV-1).
Reason: Host-pathogen exploitation of Rab7 function rather than a primary biological role.
GO:0022615 protein to membrane docking
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 mediates docking of the retromer coat complex to endosomal membranes.
Reason: Core function in retromer recruitment and cargo sorting.
GO:0030672 synaptic vesicle membrane
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 activity at synaptic vesicle membranes / presynaptic endosomes (ortholog transfer).
Reason: Neuron-specific localization relevant to synaptic recycling and neuropathy.
GO:0030904 retromer complex
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 colocalizes with the retromer complex on endosomes (ortholog transfer).
Reason: Core function; Rab7 recruits retromer for cargo sorting.
GO:0031267 small GTPase binding
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 can interact with other small GTPases in Rab cascade regulation.
Reason: Secondary function; Rab7 primarily recruits dedicated effectors.
GO:0032935 sterol sensor activity
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 contributes to sterol sensing via the ORP1L complex (contributes_to qualifier).
Reason: ORP1L carries the sterol-sensing domain; Rab7 scaffolds the complex rather than directly sensing sterol.
GO:0032991 protein-containing complex
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 forms complexes with multiple effectors (RILP, ORP1L, PLEKHM1, retromer, HOPS).
Reason: Accurate, though general; specific complex memberships are also captured.
GO:0036466 synaptic vesicle recycling via endosome
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 involvement in synaptic vesicle recycling via endosomes (ortholog transfer).
Reason: Neuron-specific process, not a ubiquitous Rab7 function.
GO:0042147 retrograde transport, endosome to Golgi
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7-dependent retromer recruitment drives endosome-to-Golgi retrograde transport (e.g. CI-M6PR).
Reason: Core function downstream of retromer recruitment.
GO:0042632 cholesterol homeostasis
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7-ORP1L coordinates cholesterol sensing and late endosome positioning.
Reason: Specialized function mediated by the ORP1L effector; not the primary degradative role.
GO:0045022 early endosome to late endosome transport
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 controls the Rab5-to-Rab7 conversion that matures early endosomes into late endosomes. Confirmed in vivo in mouse liver as a mediator of late endosomal maturation.
Reason: Core function; loss of Rab7 perturbs endosomal maturation in vivo.
Supporting Evidence:
PMID:41814093
Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape.
GO:0045335 phagocytic vesicle
ISO
GO_REF:0000119
ACCEPT
Summary: Phagocytic vesicle localization transferred from human ortholog.
Reason: Consistent with the phagosome maturation function.
GO:0045453 bone resorption
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 is required for osteoclast ruffled-border function and bone resorption, directly demonstrated in mouse osteoclasts.
Reason: Cell-type-specific physiological role; the ruffled border is a lysosome-related compartment dependent on Rab7-mediated trafficking.
GO:0045732 positive regulation of protein catabolic process
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7-mediated endolysosomal and autophagic flux promotes protein degradation.
Reason: Direct consequence of the core degradative trafficking function.
GO:0048524 positive regulation of viral process
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 endolysosomal function can be exploited to promote viral processes.
Reason: Host-pathogen interaction rather than a primary biological role.
GO:0061462 protein localization to lysosome
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 directs protein cargo to the lysosome.
Reason: Core function in lysosomal targeting.
GO:0090120 lysosome to ER cholesterol transport
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7-ORP1L complex regulates cholesterol transport from lysosomes to the ER.
Reason: Specialized lipid-homeostasis function mediated by the ORP1L effector.
GO:0090383 phagosome acidification
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 regulates phagosomal acidification during maturation.
Reason: Part of the core phagosome maturation function.
GO:0090385 phagosome-lysosome fusion
ISO
GO_REF:0000119
ACCEPT
Summary: Phagosome-lysosome fusion transferred from human ortholog.
Reason: Core function in phagolysosome formation.
GO:0097208 alveolar lamellar body
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 localization to alveolar lamellar bodies (lysosome-related organelles of type II pneumocytes).
Reason: Cell-type-specific localization.
GO:0098830 presynaptic endosome
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Rab7 activity at presynaptic endosomes (ortholog transfer).
Reason: Neuron-specific localization relevant to synaptic function.
GO:0099638 endosome to plasma membrane protein transport
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 can influence recycling of cargo to the plasma membrane.
Reason: Secondary function; the primary Rab7 role is degradative trafficking.
GO:1903542 negative regulation of exosomal secretion
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 can negatively regulate exosome secretion by directing MVBs toward lysosomal degradation.
Reason: Context-dependent regulatory role affecting exosome biogenesis.
GO:1903543 positive regulation of exosomal secretion
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Rab7 can also positively regulate exosome secretion in the syndecan-syntenin-ALIX pathway.
Reason: Context-dependent; Rab7 has opposing effects on exosome release depending on pathway.
GO:1905394 retromer complex binding
ISO
GO_REF:0000119
ACCEPT
Summary: Rab7 recruits/binds the retromer complex on endosomes for cargo sorting.
Reason: Core molecular function specifying the retromer interaction.
GO:0003924 GTPase activity
EXP
PMID:16855591
TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by...
ACCEPT
Summary: Biochemical study of TBC-domain GAPs directly characterizing Rab7 GTP hydrolysis, including the intrinsic GTPase activity accelerated by GAPs.
Reason: Core molecular function with direct experimental support.
Supporting Evidence:
PMID:16855591
TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism.
GO:0005765 lysosomal membrane
EXP
PMID:28063257
Genetic screen in Drosophila muscle identifies autophagy-med...
ACCEPT
Summary: Experimental localization of Rab7 to the lysosomal membrane in an autophagy screen; Rab7 is cited as the defining marker of late endosomes and lysosomes.
Reason: Core localization, experimentally supported.
Supporting Evidence:
PMID:28063257
late endosomes (Rab7, Rab9), lysosomes (Rab7) and others
GO:0010008 endosome membrane
ISS
GO_REF:0000024
ACCEPT
Summary: Endosome membrane localization by sequence similarity to characterized orthologs.
Reason: Core localization.
GO:0031410 cytoplasmic vesicle
EXP
PMID:23179371
Charcot-Marie-Tooth type 2B disease-causing RAB7A mutant pro...
ACCEPT
Summary: Rab7 on cytoplasmic vesicles in a study of CMT2B mutant interaction with peripherin; the paper notes Rab7a localizes to late endosomes and controls transport to late endosomes/lysosomes and maturation of phagosomes and autophagosomes.
Reason: Accurate, though general; consistent with vesicular Rab7 localization.
Supporting Evidence:
PMID:23179371
RAB7A is localized to late endosomes and controls transport to late endosomes and lysosomes as well as maturation of phagosomes and autophagosomes
GO:0031902 late endosome membrane
ISS
GO_REF:0000024
ACCEPT
Summary: Late endosome membrane localization by sequence similarity.
Reason: Core localization.
GO:0031966 mitochondrial membrane
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Mitochondrial membrane association by sequence similarity (mitophagy / contact-site context).
Reason: Context-dependent localization.
GO:0033162 melanosome membrane
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Melanosome membrane localization by sequence similarity.
Reason: Cell-type-specific (melanocyte) localization.
GO:0003925 G protein activity
IDA
PMID:16855591
TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by...
ACCEPT
Summary: Direct demonstration of Rab7 nucleotide-dependent G protein behavior in the GAP study.
Reason: Core molecular function, directly supported.
Supporting Evidence:
PMID:16855591
TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism.
GO:0005515 protein binding
IPI
PMID:38744829
RUFY4 deletion prevents pathological bone loss by blocking e...
REMOVE
Summary: Interaction between Rab7 and the effector RUFY4 in osteoclasts.
Reason: GO:0005515 protein binding is uninformative. RUFY4 is a characterized Rab7 effector for autophagy/lysosome tethering; the functional role is captured by trafficking terms.
Supporting Evidence:
PMID:38744829
Recent studies have shown that RUFY4 is an effector of small GTPases such as Rab7
GO:0098943 neurotransmitter receptor transport, postsynaptic endosome to lysosome
IDA
PMID:24217640
Stargazin regulates AMPA receptor trafficking through adapto...
KEEP AS NON CORE
Summary: SynGO annotation associating Rab7 with postsynaptic endosome-to-lysosome AMPA-receptor trafficking during long-term depression.
Reason: Revisited in the human/mouse Deliverome comparison. The accessible PMID text supports AMPA-receptor movement into late endosomal/lysosomal compartments during LTD, which is compatible with Rab7's conserved endosome-to-lysosome role. However, the paper emphasizes stargazin/AP-2/AP-3A rather than a Rab7-specific perturbation, so this should be retained only as a SynGO neuronal-context annotation and not treated as core Rab7 biology.
Supporting Evidence:
PMID:24217640
stargazin-AP-3A abrogates the late endosomal/lysosomal trafficking of AMPA receptors
GO:0098943 neurotransmitter receptor transport, postsynaptic endosome to lysosome
IMP
PMID:24217640
Stargazin regulates AMPA receptor trafficking through adapto...
KEEP AS NON CORE
Summary: SynGO IMP annotation for Rab7 in AMPA-receptor degradative trafficking during LTD.
Reason: Revisited in the human/mouse Deliverome comparison. The PMID supports activity-dependent AMPA-receptor routing from early endosomes toward late endosomes/lysosomes, a route Rab7 generally controls. Because the accessible text identifies stargazin/AP-2/AP-3A as the experimental focus and does not give Rab7-specific mechanistic evidence, retain this as non-core and indirect.
Supporting Evidence:
PMID:24217640
transport from the cell surface to early endosomes and from early endosomes to late endosomes/lysosomes
GO:0098978 glutamatergic synapse
IDA
PMID:24217640
Stargazin regulates AMPA receptor trafficking through adapto...
KEEP AS NON CORE
Summary: SynGO annotation placing Rab7 at glutamatergic synapses in AMPA-receptor trafficking.
Reason: The source is a hippocampal LTD/AMPAR-trafficking study, so the glutamatergic-synapse context is biologically plausible for the SynGO annotation. It is not a core Rab7 localization, and the accessible text does not provide direct Rab7 localization or perturbation evidence, so retain only as a context-specific neuronal annotation.
Supporting Evidence:
PMID:24217640
necessary for low-frequency stimulus-evoked LTD in CA1 hippocampal neurons
GO:0098978 glutamatergic synapse
IMP
PMID:24217640
Stargazin regulates AMPA receptor trafficking through adapto...
KEEP AS NON CORE
Summary: SynGO IMP annotation for Rab7 functional role at glutamatergic synapses (LTD).
Reason: The PMID supports postsynaptic AMPA-receptor trafficking during LTD in hippocampal neurons, but the accessible text centers on stargazin and adaptor complexes rather than Rab7-specific evidence. Retain the SynGO row as a non-core neuronal-context annotation and avoid using it as a primary assertion about Rab7 function.
Supporting Evidence:
PMID:24217640
postsynaptic AMPA receptor trafficking mediates LTD
GO:0005770 late endosome
IDA
PMID:35353806
TMED2 binding restricts SMO to the ER and Golgi compartments...
ACCEPT
Summary: Rab7 on late endosomes in a study of TMED2/SMO trafficking, by super-resolution 3D-STORM imaging.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:35353806
Dual color 3D-STORM analysis showing ERP72 (C), RCAS1 (D) and RAB7 (E) distribution
GO:0005765 lysosomal membrane
IDA
PMID:23708524
β-adrenergic receptor-stimulated lipolysis requires the RAB7...
ACCEPT
Summary: Rab7 colocalizes with lysosomal membranes during autolysosomal lipid degradation in adipocytes.
Reason: Core localization, experimentally supported in mouse.
Supporting Evidence:
PMID:23708524
RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells.
GO:0005829 cytosol
IDA
PMID:23708524
β-adrenergic receptor-stimulated lipolysis requires the RAB7...
ACCEPT
Summary: Inactive GDP-bound Rab7 is cytosolic; observed in the lipolysis/lipophagy study.
Reason: Consistent with the GTPase cycle (cytosolic GDP-bound pool).
GO:0005515 protein binding
IPI
PMID:29712939
Essential Role of the a3 Isoform of V-ATPase in Secretory Ly...
REMOVE
Summary: Interaction supporting V-ATPase a3-dependent Rab7 recruitment to secretory lysosomes.
Reason: GO:0005515 protein binding is uninformative; the functional relationship is captured by recruitment/localization terms.
Supporting Evidence:
PMID:29712939
Rab7, a small GTPase involved in organelle trafficking.
GO:0005739 mitochondrion
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Mitochondrial association by sequence similarity (mitophagy context).
Reason: Context-dependent localization, not constitutive.
GO:0099638 endosome to plasma membrane protein transport
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Rab7 influence on plasma-membrane-directed cargo transport by sequence similarity.
Reason: Secondary function relative to the core degradative role.
GO:0005770 late endosome
IDA
PMID:27390154
Loss of strumpellin in the melanocytic lineage impairs the W...
ACCEPT
Summary: Rab7 used as the late endosomal marker in a melanocyte WASH/strumpellin colocalization study.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:27390154
a significant increase in the colocalization of WASH and the late endosomal marker Rab7
GO:0005764 lysosome
IDA
PMID:29712939
Essential Role of the a3 Isoform of V-ATPase in Secretory Ly...
ACCEPT
Summary: Active Rab7 functions on (secretory) lysosomes, recruited in a V-ATPase a3-dependent manner.
Reason: Core site of action, experimentally supported in mouse.
Supporting Evidence:
PMID:29712939
Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment.
GO:0051650 establishment of vesicle localization
IMP
PMID:29712939
Essential Role of the a3 Isoform of V-ATPase in Secretory Ly...
ACCEPT
Summary: Rab7 recruitment is required for proper trafficking/positioning of secretory lysosomes (V-ATPase a3-dependent).
Reason: Consistent with the established Rab7 role in vesicle/organelle positioning.
Supporting Evidence:
PMID:29712939
Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment.
GO:0005770 late endosome
IDA
PMID:25592972
An aberrant sugar modification of BACE1 blocks its lysosomal...
ACCEPT
Summary: Rab7 used as a late-endosome marker in subcellular fractionation in a study of BACE1 lysosomal targeting.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:25592972
immunoblotted for BACE1, APP, rab5, or rab7
GO:0005515 protein binding
IPI
PMID:27777970
PLEKHM1/DEF8/RAB7 complex regulates lysosome positioning and...
REMOVE
Summary: Rab7 binds the PLEKHM1/DEF8 lysosome-positioning effector complex.
Reason: GO:0005515 protein binding is uninformative. PLEKHM1 is a well-characterized Rab7 effector; the function is captured by lysosome positioning/trafficking terms.
Supporting Evidence:
PMID:27777970
PLEKHM1 binds to RAB7 and is critical for lysosome trafficking.
GO:0005768 endosome
IDA
PMID:26582200
Lifeguard Inhibits Fas Ligand-mediated Endoplasmic Reticulum...
ACCEPT
Summary: Rab7 on endosomes in a study of Lifeguard/Fas signaling.
Reason: Accurate, though general; more specific late endosome terms are also annotated.
GO:0005811 lipid droplet
IDA
PMID:23708524
β-adrenergic receptor-stimulated lipolysis requires the RAB7...
ACCEPT
Summary: Rab7 localizes to lipid droplets and the LD-associated pool drives their autophagic degradation during beta-adrenergic lipolysis in mouse adipocytes.
Reason: Experimentally supported localization underpinning the lipophagy function.
Supporting Evidence:
PMID:23708524
ADRB2 stimulation has caused a marked increase in the autophagy-targeted LDs for lysosomal degradation, which is dependent on the LD-associated RAB7
GO:0031902 late endosome membrane
IDA
PMID:23708524
β-adrenergic receptor-stimulated lipolysis requires the RAB7...
ACCEPT
Summary: Rab7 on late endosome membranes in the adipocyte lipolysis/lipophagy study.
Reason: Core localization, experimentally supported.
Supporting Evidence:
PMID:23708524
RAB7, being primarily associated with late endosomes, is a central factor in endosomal trafficking
GO:0061724 lipophagy
IMP
PMID:23708524
β-adrenergic receptor-stimulated lipolysis requires the RAB7...
ACCEPT
Summary: Rab7 is required for autolysosome-mediated lipid-droplet degradation (lipophagy) in fat cells, shown by knockdown and dominant-negative mutant.
Reason: Directly demonstrated mouse function; a specialized branch of the core autophagy role.
Supporting Evidence:
PMID:23708524
RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells.
GO:0005770 late endosome
IDA
PMID:24760869
In vivo regulation of NGF-mediated functions by Nedd4-2 ubiq...
ACCEPT
Summary: Rab7 on late endosomes in a study of Nedd4-2/TrkA trafficking.
Reason: Core localization, experimentally observed.
GO:0034045 phagophore assembly site membrane
IDA
PMID:19956673
An initial step of GAS-containing autophagosome-like vacuole...
ACCEPT
Summary: Rab7 at the phagophore assembly site during formation of GAS-containing autophagosome-like vacuoles (GcAVs).
Reason: Consistent with the Rab7 role in autophagy.
Supporting Evidence:
PMID:19956673
Rab7, a member of the small GTPase Rab family, may be involved in GcAV formation
GO:0005770 late endosome
IDA
PMID:24334765
The tumor susceptibility gene TMEM127 is mutated in renal ce...
ACCEPT
Summary: Rab7 on late endosomes in a study of TMEM127 endolysosomal function.
Reason: Core localization, experimentally observed.
GO:0005515 protein binding
IPI
PMID:22467241
V-ATPase subunit ATP6AP1 (Ac45) regulates osteoclast differe...
REMOVE
Summary: Rab7 interaction in the context of ATP6AP1/Ac45 and osteoclast lysosomal trafficking.
Reason: GO:0005515 protein binding is uninformative; the relevant function is lysosomal trafficking in osteoclasts.
GO:0005770 late endosome
IDA
PMID:24035762
Christianson syndrome protein NHE6 modulates TrkB endosomal ...
ACCEPT
Summary: Rab7 used as a late-endosome marker (co-staining with NHE6) in a study of TrkB endosomal signaling.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:24035762
Rab7-associated endosomes (late endosomes)
GO:0005515 protein binding
IPI
PMID:24549040
C9ORF72, implicated in amytrophic lateral sclerosis and fron...
REMOVE
Summary: Rab7 interaction in the context of C9ORF72 endosomal trafficking.
Reason: GO:0005515 protein binding is uninformative; C9ORF72 regulates Rab-mediated endosomal trafficking, captured by trafficking terms.
GO:0005515 protein binding
IPI
PMID:22275436
Melanoregulin regulates retrograde melanosome transport thro...
REMOVE
Summary: Rab7 interaction in melanoregulin/RILP-p150Glued retrograde melanosome transport.
Reason: GO:0005515 protein binding is uninformative; the RILP effector axis is captured by trafficking/transport terms.
GO:0005770 late endosome
IDA
PMID:23028046
Cellular adaptation to anthrax lethal toxin-induced mitochon...
ACCEPT
Summary: Rab7 on late endosomes in a macrophage anthrax-toxin/MLN64 study.
Reason: Core localization, experimentally observed.
GO:0005737 cytoplasm
IDA
PMID:18656450
Trafficking of cGMP-dependent protein kinase II via interact...
ACCEPT
Summary: Cytoplasmic localization observed in a cGKII/Rab11 trafficking study.
Reason: Accurate but general; the cytosol and specific vesicular compartments are more informative and also annotated.
GO:0045335 phagocytic vesicle
ISS
GO_REF:0000024
ACCEPT
Summary: Phagocytic vesicle localization by sequence similarity.
Reason: Consistent with the phagosome maturation function.
GO:0090383 phagosome acidification
ISS
GO_REF:0000024
ACCEPT
Summary: Phagosome acidification by sequence similarity.
Reason: Part of the core phagosome maturation function.
GO:0090385 phagosome-lysosome fusion
ISS
GO_REF:0000024
ACCEPT
Summary: Phagosome-lysosome fusion by sequence similarity.
Reason: Core function in phagolysosome formation.
GO:0005515 protein binding
IPI
PMID:19368996
The drs tumor suppressor is involved in the maturation proce...
REMOVE
Summary: Rab7 interaction in a study of the drs tumor suppressor in autophagy maturation.
Reason: GO:0005515 protein binding is uninformative; the autophagy maturation role is captured by autophagy terms.
GO:0005770 late endosome
IDA
PMID:19509052
Derlin-dependent accumulation of integral membrane proteins ...
ACCEPT
Summary: Rab7 on late endosomes in a Derlin membrane-protein accumulation study.
Reason: Core localization, experimentally observed.
GO:0045022 early endosome to late endosome transport
ISS
GO_REF:0000024
ACCEPT
Summary: Early-to-late endosome transport by sequence similarity (Rab5-to-Rab7 conversion).
Reason: Core function in endosomal maturation.
GO:0005770 late endosome
IDA
PMID:20943658
Expression, localization, and biochemical characterization o...
ACCEPT
Summary: Rab7 marks the late endosomes to which Nmnat2 localizes.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:20943658
Nmnat2 localizes to Rab7-containing late endosomes
GO:0005515 protein binding
IPI
PMID:12972561
Rabring7, a novel Rab7 target protein with a RING finger mot...
REMOVE
Summary: Identification of Rabring7 (BCA2/RNF115) as a Rab7 target protein with a RING finger motif.
Reason: GO:0005515 protein binding is uninformative; this is a specific effector interaction whose function is better captured by other terms.
GO:0005770 late endosome
IDA
PMID:15588329
Membrane trafficking and mitochondrial abnormalities precede...
ACCEPT
Summary: Rab7 used as the late endosomal marker in a juvenile neuronal ceroid lipofuscinosis cerebellar cell model.
Reason: Core localization, experimentally observed.
Supporting Evidence:
PMID:15588329
the late endosomal marker, Rab7
GO:0005764 lysosome
ISO
PMID:15078902
Cargo-selective endosomal sorting for retrieval to the Golgi...
ACCEPT
Summary: Lysosome localization transferred from the retromer ortholog study, where the retromer subunit VPS26 colocalizes with Rab7.
Reason: Core localization.
Supporting Evidence:
PMID:15078902
modest colocalization between mVPS26 and GFP-rab7
GO:0005770 late endosome
ISO
PMID:15078902
Cargo-selective endosomal sorting for retrieval to the Golgi...
ACCEPT
Summary: Late endosome localization transferred from the retromer ortholog study, where the retromer subunit VPS26 colocalizes with Rab7.
Reason: Core localization.
Supporting Evidence:
PMID:15078902
modest colocalization between mVPS26 and GFP-rab7
GO:0005770 late endosome
IDA
PMID:11172003
A FYVE-finger-containing protein, Rabip4, is a Rab4 effector...
ACCEPT
Summary: Rab7 on late endosomes in a study of the Rab4 effector Rabip4.
Reason: Core localization, experimentally observed.
GO:0006886 intracellular protein transport
TAS
PMID:11042173
Proteomics characterization of abundant Golgi membrane prote...
KEEP AS NON CORE
Summary: Rab7 general role in intracellular protein transport, from a Golgi membrane proteomics paper.
Reason: Too general; the specific endosome-to-lysosome and retrograde transport terms capture the actual function more precisely.
GO:0005794 Golgi apparatus
IDA
PMID:11042173
Proteomics characterization of abundant Golgi membrane prote...
MARK AS OVER ANNOTATED
Summary: Rab7 detected in a bulk proteomic characterization of abundant Golgi membrane proteins.
Reason: Rab7 is a late-endosome/lysosome GTPase; detection in a Golgi membrane fraction most plausibly reflects co-fractionation/contamination or transient retrograde-pathway association rather than a genuine steady-state Golgi pool. Not a core localization.

Core Functions

Rab7 functions as a small GTPase molecular switch (EC 3.6.5.2), cycling between an inactive GDP-bound (cytosolic) and an active GTP-bound (membrane-associated) state. Activation by the Mon1-Ccz1 GEF on maturing endosomes and inactivation by TBC-domain GAPs underpins its control of late endocytic trafficking, autophagy (including lipophagy), phagosome maturation and lysosome biogenesis.

Supporting Evidence:
  • PMID:16855591
    TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism.
  • PMID:41814093
    Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape.
  • PMID:23708524
    RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells.

Active Rab7 recruits and binds the retromer complex on late endosomes, docking it to the membrane to drive cargo-selective endosome-to-Golgi retrograde transport.

References

Gene Ontology annotation through association of InterPro records with GO terms
Gene Ontology annotation based on Enzyme Commission mapping
Manual transfer of experimentally-verified manual GO annotation data to orthologs by curator judgment of sequence similarity
Annotation inferences using phylogenetic trees
Gene Ontology annotation based on UniProtKB/Swiss-Prot Subcellular Location vocabulary mapping, accompanied by conservative changes to GO terms applied by UniProt
Automated transfer of experimentally-verified manual GO annotation data to mouse-rat orthologs
Electronic Gene Ontology annotations created by ARBA machine learning models
Automated transfer of experimentally-verified manual GO annotation data to mouse-human orthologs
Proteomics characterization of abundant Golgi membrane proteins.
  • Rab7 was detected in a bulk proteomic fraction of Golgi membranes
    "Proteomics characterization of abundant Golgi membrane proteins."
A FYVE-finger-containing protein, Rabip4, is a Rab4 effector involved in early endosomal traffic.
Rabring7, a novel Rab7 target protein with a RING finger motif.
Cargo-selective endosomal sorting for retrieval to the Golgi requires retromer.
Membrane trafficking and mitochondrial abnormalities precede subunit c deposition in a cerebellar cell model of juvenile neuronal ceroid lipofuscinosis.
TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism.
  • TBC-domain GAPs accelerate Rab7 GTP hydrolysis
    "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism."
Trafficking of cGMP-dependent protein kinase II via interaction with Rab11.
The drs tumor suppressor is involved in the maturation process of autophagy induced by low serum.
Derlin-dependent accumulation of integral membrane proteins at cell surfaces.
An initial step of GAS-containing autophagosome-like vacuoles formation requires Rab7.
Expression, localization, and biochemical characterization of nicotinamide mononucleotide adenylyltransferase 2.
Melanoregulin regulates retrograde melanosome transport through interaction with the RILP-p150Glued complex in melanocytes.
V-ATPase subunit ATP6AP1 (Ac45) regulates osteoclast differentiation, extracellular acidification, lysosomal trafficking, and protease exocytosis in osteoclast-mediated bone resorption.
Cellular adaptation to anthrax lethal toxin-induced mitochondrial cholesterol enrichment, hyperpolarization, and reactive oxygen species generation through downregulating MLN64 in macrophages.
Charcot-Marie-Tooth type 2B disease-causing RAB7A mutant proteins show altered interaction with the neuronal intermediate filament peripherin.
β-adrenergic receptor-stimulated lipolysis requires the RAB7-mediated autolysosomal lipid degradation.
  • Rab7 is required for lipophagy of lipid droplets in fat cells
    "RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells."
  • LD-associated Rab7 mediates autophagic targeting of lipid droplets
    "ADRB2 stimulation has caused a marked increase in the autophagy-targeted LDs for lysosomal degradation, which is dependent on the LD-associated RAB7"
Christianson syndrome protein NHE6 modulates TrkB endosomal signaling required for neuronal circuit development.
Stargazin regulates AMPA receptor trafficking through adaptor protein complexes during long-term depression.
The tumor susceptibility gene TMEM127 is mutated in renal cell carcinomas and modulates endolysosomal function.
C9ORF72, implicated in amytrophic lateral sclerosis and frontotemporal dementia, regulates endosomal trafficking.
In vivo regulation of NGF-mediated functions by Nedd4-2 ubiquitination of TrkA.
An aberrant sugar modification of BACE1 blocks its lysosomal targeting in Alzheimer's disease.
Lifeguard Inhibits Fas Ligand-mediated Endoplasmic Reticulum-Calcium Release Mandatory for Apoptosis in Type II Apoptotic Cells.
Loss of strumpellin in the melanocytic lineage impairs the WASH Complex but does not affect coat colour.
PLEKHM1/DEF8/RAB7 complex regulates lysosome positioning and bone homeostasis.
  • PLEKHM1 binds Rab7 and is critical for lysosome trafficking
    "PLEKHM1 binds to RAB7 and is critical for lysosome trafficking."
Genetic screen in Drosophila muscle identifies autophagy-mediated T-tubule remodeling and a Rab2 role in autophagy.
Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment.
  • Rab7 is a small GTPase involved in organelle trafficking, recruited to secretory lysosomes in a V-ATPase a3-dependent manner
    "Rab7, a small GTPase involved in organelle trafficking."
TMED2 binding restricts SMO to the ER and Golgi compartments.
RUFY4 deletion prevents pathological bone loss by blocking endo-lysosomal trafficking of osteoclasts.
  • RUFY4 is an effector of small GTPases including Rab7
    "Recent studies have shown that RUFY4 is an effector of small GTPases such as Rab7"
  • Rab7 is enriched at the osteoclast ruffled border and required for bone resorption
    "Notably, Rab7 is highly expressed at the ruffled border of bone-resorbing osteoclasts and its knockdown disrupts both the targeting of vesicles to the ruffled border and bone resorption."
In vivo endosomal escape assay identifies mechanisms for efficient hepatic LNP delivery.
  • Rab7 is a mediator of late endosomal maturation; its loss increases cytosolic escape of lipid nanoparticles in mouse liver
    "Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape."
  • LysoTag mice enable immunoisolation of liver lysosomes to quantify in vivo endosomal escape
    "we used LysoTag mice, which allow immunoisolation of liver lysosomes"
file:mouse/Rab7/Rab7-deep-research-manual.md
Manual research synthesis for mouse Rab7 (deep-research providers unavailable)

Suggested Questions for Experts

Q: The Nature Biotechnology study (PMID:41814093) shows that loss of Rab7 increases cytosolic escape of lipid nanoparticles in mouse liver. Does Rab7 activity define a general, druggable checkpoint that partitions endocytosed cargo between degradation and cytosolic escape, and can transient Rab7 modulation be exploited to enhance therapeutic nucleic-acid delivery?

Q: How are the tissue-specialized Rab7 functions (adipocyte lipophagy, synaptic AMPA-receptor turnover, osteoclast ruffled-border trafficking) differentially wired through distinct effectors despite a single ubiquitous GTPase switch?

Suggested Experiments

Experiment: Use the LysoTag/Lysosomal Barcoding in vivo endosomal-escape assay (PMID:41814093) across conditional Rab7 (Rab7a) knockout tissues to quantify, in a tissue-resolved manner, how Rab7 loss shifts the balance between lysosomal degradation and cytosolic escape of endocytosed cargo.

Experiment: Effector-interaction profiling (proximity labeling) of mouse Rab7 in adipocytes, neurons and osteoclasts to map the cell-type-specific effector modules that route the common Rab7 switch to lipophagy, synaptic receptor degradation and ruffled-border trafficking, respectively.

Deep Research

Manual

(Rab7-deep-research-manual.md)
Rab7 (mouse, Rab7a / P51150) — Manual Research Synthesis Manual

Rab7 (mouse, Rab7a / P51150) — Manual Research Synthesis

Provenance note. Automated deep-research providers could not be run in this
environment: the Falcon provider requires the agentapi binary (not in PATH),
and the OpenAI/Perplexity/Anthropic providers require API keys that are not set.
Per project policy, no -deep-research-{provider}.md file was fabricated. This
file is a manual synthesis assembled from cached primary literature
(publications/PMID_*.md) and the requested Nature Biotechnology 2026 paper.
Every assertion carries a PMID and supporting quote.

1. Identity and core function

Mouse Rab7 (official symbol Rab7a, MGI:105068; UniProt P51150, 207 aa)
is a Rab-family small GTPase (EC 3.6.5.2) and the direct ortholog of human RAB7A.
It is the master switch of the late endocytic pathway, GTP-loaded by Mon1-Ccz1 on
maturing endosomes and turned off by TBC-domain GAPs.

  • TBC-domain GAPs accelerate Rab7 GTP hydrolysis by a dual-finger mechanism
    [PMID:16855591, "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a
    dual-finger mechanism"].

2. Rab7a is functionally distinct from Rab7b

A point worth flagging so the two paralogs are not conflated (mouse "Rab7" = Rab7a):

  • [PMID:23179371, "RAB7A is localized to late endosomes and controls transport to
    late endosomes and lysosomes as well as maturation of phagosomes and
    autophagosomes [...] while RAB7B controls transport from endosomes to the Golgi
    apparatus"].

This also supports flagging the lone Golgi apparatus annotation
(GO:0005794, from a bulk Golgi-membrane proteomics survey PMID:11042173) as an
over-annotation — Golgi-directed traffic is the province of Rab7b, not Rab7a.

3. Most interesting / novel finding — the requested paper

PMID:41814093 Jozić et al. (2026) Nature Biotechnology,
"In vivo endosomal escape assay identifies mechanisms for efficient hepatic LNP
delivery." DOI: 10.1038/s41587-026-03022-6.

  • The authors built an in vivo assay (LysoTag mice + "Lysosomal Barcoding") to
    quantify, in intact mouse liver, how much of an mRNA lipid-nanoparticle (LNP)
    dose escapes the endolysosomal system into the cytosol
    [PMID:41814093, "we used LysoTag mice, which allow immunoisolation of liver
    lysosomes"].
  • Counterintuitive, therapeutically important result: removing Rab7 increases
    cytosolic escape of LNPs
    [PMID:41814093, "Loss of Rab7, a mediator of late endosomal maturation, increased
    LNP escape"].

Why this is interesting: most of the Rab7 literature frames it through degradation
and disease. This study reframes Rab7 as a rate-limiting "checkpoint" that
partitions endocytosed cargo toward lysosomal degradation and away from cytosolic
delivery
— i.e., the same maturation activity that makes Rab7 essential for
degradation is exactly what limits the efficiency of nucleic-acid therapeutics in
vivo. It also provides rare in vivo, intact-tissue genetic evidence for Rab7's
role in late endosomal maturation, complementing the mostly cell-line-based
mechanistic literature.

4. Mouse-specific physiology (beyond the canonical degradation role)

The genuinely mouse-experimental (non-ISO) annotations cluster around tissue
physiology rather than generic trafficking, which is the most distinctive aspect of
the mouse dataset:

  • Adipocyte lipophagy / β-adrenergic lipolysis. Rab7 couples autophagy to fat
    mobilization [PMID:23708524, "RAB7 plays a pivotal role in the regulation of this
    autolysosome-mediated lipid degradation in fat cells"; and "ADRB2 stimulation has
    caused a marked increase in the autophagy-targeted LDs for lysosomal degradation,
    which is dependent on the LD-associated RAB7"].
  • Osteoclast bone resorption. Rab7 is enriched at the osteoclast ruffled border
    and required for resorption [PMID:38744829, "Rab7 is highly expressed at the
    ruffled border of bone-resorbing osteoclasts and its knockdown disrupts both the
    targeting of vesicles to the ruffled border and bone resorption"]; it acts through
    the PLEKHM1/DEF8 positioning complex [PMID:27777970, "PLEKHM1 binds to RAB7 and is
    critical for lysosome trafficking"] and the effector RUFY4 [PMID:38744829, "RUFY4
    is an effector of small GTPases such as Rab7"]. RUFY4 deletion prevents
    pathological bone loss — a potential therapeutic angle.
  • Neuronal synaptic plasticity. Rab7 routes AMPA receptors from postsynaptic
    endosomes to lysosomes during long-term depression PMID:24217640.
  • Secretory-lysosome trafficking. The a3 isoform of V-ATPase recruits Rab7 to
    drive secretory-lysosome trafficking [PMID:29712939, "Essential Role of the a3
    Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment"]; this
    pathway is linked to albinism/immunodeficiency syndromes.

5. Curation observations

  • No NOT/negated and no isoform-specific annotations exist for mouse Rab7.
  • The MF core (GTPase/G-protein activity, GTP/GDP binding, retromer binding) is
    well supported; ~half the dataset is ISO transfer from human/rat, consistent with
    the deeply conserved trafficking role.
  • Two cached publications (PMID:24760869, PMID:24334765) supporting late-endosome
    localization annotations are abstract-only and do not contain a Rab7 sentence in
    the cached text, so those ACCEPTs remain without a verbatim quote (4 residual
    validation warnings, all benign).

📚 Additional Documentation

Notes

(Rab7-notes.md)

Rab7 (mouse, Rab7a) — Review Notes

UniProt: P51150 (RAB7A_MOUSE), 207 aa. Official MGI symbol Rab7a (MGI:105068),
historical/synonym symbol Rab7. Directory and files use the Rab7 prefix (as
fetched). NCBI taxon 10090.

Summary of gene function

Mouse Rab7 (Rab7a) is the direct ortholog of human RAB7A and is functionally identical:
a Rab-family small GTPase (EC 3.6.5.2) that acts as the master regulator of the late
endocytic pathway. It cycles between an inactive GDP-bound (cytosolic) state and an
active GTP-bound (membrane-associated) state. When GTP-loaded by the Mon1–Ccz1 GEF on
maturing endosomes (Rab5→Rab7 conversion), it recruits effectors (RILP, HOPS,
retromer, FYCO1, PLEKHM1, ORP1L) to drive late endosome–lysosome fusion,
autophagosome–lysosome fusion, phagosome maturation, retrograde endosome→Golgi
transport, and lysosome positioning. It is inactivated by TBC-domain GAPs.

The mouse-specific experimental literature emphasizes physiological roles:
- Lipophagy / β-adrenergic lipolysis in adipocytes PMID:23708524.
- Synaptic AMPA-receptor trafficking and LTD in neurons PMID:24217640.
- Osteoclast bone resorption / ruffled border via PLEKHM1/DEF8 and RUFY4
[PMID:27777970, PMID:38744829, PMID:22467241].
- Secretory-lysosome trafficking via V-ATPase a3-mediated Rab7 recruitment
PMID:29712939.
- Numerous late-endosome/lysosome co-localization studies (TrkB/NHE6, TrkA/Nedd4-2,
BACE1, TMEM127, WASH/strumpellin, C9ORF72, etc.).

2026-07-19 SynGO revisit

The SynGO annotations from PMID:24217640 were revisited during the human/mouse
RAB7A/Rab7a comparison for the Deliverome project. The accessible paper text
supports AMPA-receptor routing from early endosomes toward late
endosomal/lysosomal compartments during LTD [PMID:24217640 Stargazin regulates
AMPA receptor trafficking through adaptor protein complexes during long-term
depression, "transport from the cell surface to early endosomes and from early
endosomes to late endosomes/lysosomes"]. However, the experimentally centered
actors in the accessible text are stargazin, AP-2, and AP-3A, not Rab7. I
therefore changed the four cached SynGO review rows from UNDECIDED to
KEEP_AS_NON_CORE, retaining them as indirect neuronal-context annotations
rather than core Rab7 biology.

Key requested reference

PMID:41814093 Jozić et al. (2026) Nature Biotechnology,
"In vivo endosomal escape assay identifies mechanisms for efficient hepatic LNP
delivery." DOI: 10.1038/s41587-026-03022-6.
- Used LysoTag mice for immunoisolation of liver lysosomes and lysosomal
proteomics to quantify endosomal escape of lipid nanoparticles (LNPs) in vivo.
- Key Rab7 finding: "Loss of Rab7, a mediator of late endosomal maturation,
increased LNP escape."
In vivo evidence (mouse liver) that Rab7 is a mediator of
late endosomal maturation and that its loss diverts cargo away from the
degradative lysosomal route, increasing cytosolic escape.
- This supports the core Rab7 functions of late-endosome maturation
(early→late endosome transport, endosome→lysosome transport) in an intact mouse.
- Added as a reference and cited as supporting evidence on the relevant
maturation/transport annotations.

Deep research provider status

Automated deep research could not be run in this environment: the Falcon
provider requires the agentapi binary (not in PATH), and the
OpenAI/Perplexity/Anthropic providers require API keys that are unset. No
-deep-research-{provider}.md file was fabricated (per project policy). A manual,
fully-cited synthesis was written to Rab7-deep-research-manual.md instead.

Annotation review approach

119 GOA annotations seeded. The biology mirrors human RAB7A
(genes/human/RAB7A/RAB7A-ai-review.yaml). Decisions:
- ACCEPT core MF (GTPase activity, G protein activity, GTP/GDP binding) and core
CC/BP (late endosome, lysosome, endosome→lysosome transport, retromer, retrograde
transport, autophagy/lipophagy, phagosome maturation).
- REMOVE all GO:0005515 protein binding (uninformative per curation guidelines);
the underlying effector interactions are captured by specific terms.
- KEEP_AS_NON_CORE for tissue/context-specialized roles (synaptic, bone resorption,
melanosome, mitophagy, exosome, viral, sterol sensing, EGF catabolism).
- MARK_AS_OVER_ANNOTATED for Golgi apparatus (GO:0005794, IDA from a bulk Golgi
membrane proteomics study PMID:11042173) — Rab7 is a late-endosome/lysosome
protein and this is most consistent with co-fractionation/contamination rather
than a genuine steady-state Golgi pool.

📄 View Raw YAML

id: P51150
gene_symbol: Rab7
product_type: PROTEIN
status: COMPLETE
taxon:
  id: NCBITaxon:10090
  label: Mus musculus
description: >-
  Mouse Rab7 (official symbol Rab7a; UniProt P51150) is a Rab-family small GTPase
  (EC 3.6.5.2) and the direct ortholog of human RAB7A. It is the master regulator
  of the late endocytic pathway, cycling between an inactive GDP-bound (cytosolic)
  state and an active GTP-bound (membrane-associated) state. GTP-loading by the
  Mon1-Ccz1 GEF on maturing endosomes (the Rab5-to-Rab7 conversion) recruits
  effectors including RILP, the HOPS tethering complex, retromer, FYCO1, PLEKHM1
  and ORP1L to drive early-to-late endosome maturation, late endosome-lysosome
  fusion, autophagosome-lysosome fusion, phagosome maturation, retrograde
  endosome-to-Golgi transport and lysosome positioning. It is inactivated by
  TBC-domain GAPs. Mouse studies have established physiological roles in lipophagy
  and beta-adrenergic lipolysis in adipocytes, synaptic AMPA-receptor trafficking
  during long-term depression in neurons, osteoclast ruffled-border function and
  bone resorption, and secretory-lysosome trafficking. In vivo work in mouse liver
  using LysoTag mice further confirms Rab7 as a mediator of late endosomal
  maturation, where its loss diverts cargo away from the degradative route and
  increases the cytosolic escape of lipid nanoparticles (PMID:41814093).

existing_annotations:
# ============ IBA ANNOTATIONS (PHYLOGENETIC) ============
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: is_active_in
  review:
    summary: >-
      Rab7 is a canonical lysosomal marker and effector platform. UniProt lists
      lysosome membrane localization with experimental support across orthologs.
    action: ACCEPT
    reason: >-
      Core localization where Rab7 exerts its regulatory function in fusion and
      cargo degradation; supported by phylogenetic conservation and experimental
      data in mouse.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: is_active_in
  review:
    summary: >-
      Late endosome is the canonical site of active Rab7, where it is GTP-loaded
      by Mon1-Ccz1 during the Rab5-to-Rab7 conversion.
    action: ACCEPT
    reason: >-
      Defining core localization for Rab7, confirmed by many mouse IDA studies in
      this review.
- term:
    id: GO:0008333
    label: endosome to lysosome transport
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: involved_in
  review:
    summary: >-
      The core biological process for Rab7: it controls maturation of late
      endosomes and their fusion with lysosomes for cargo degradation. In vivo
      mouse liver data confirm Rab7 as a mediator of late endosomal maturation.
    action: ACCEPT
    reason: >-
      Core biological function, strongly supported across orthologs and directly
      in mouse.
    supported_by:
      - reference_id: PMID:41814093
        supporting_text: "Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape."
      - reference_id: file:mouse/Rab7/Rab7-deep-research-manual.md
        supporting_text: Manual synthesis of mouse Rab7/Rab7a literature supports
          the conserved late-endosome maturation and endosome-to-lysosome routing
          function.
- term:
    id: GO:0045335
    label: phagocytic vesicle
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: is_active_in
  review:
    summary: >-
      Rab7 is recruited to phagosomes and regulates phagosome maturation.
    action: ACCEPT
    reason: >-
      Core function in phagosome maturation; conserved across the Rab7 ortholog
      group.
- term:
    id: GO:0090385
    label: phagosome-lysosome fusion
  evidence_type: IBA
  original_reference_id: GO_REF:0000033
  qualifier: involved_in
  review:
    summary: >-
      Rab7 is required for phagosome-lysosome fusion and phagolysosome
      maturation.
    action: ACCEPT
    reason: >-
      Core function in innate immunity / pathogen degradation, conserved across
      orthologs.
# ============ IEA ANNOTATIONS (AUTOMATED) ============
- term:
    id: GO:0000421
    label: autophagosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to autophagosome membranes and is required for
      autophagosome-lysosome fusion.
    action: ACCEPT
    reason: >-
      Core localization for the autophagy role of Rab7; consistent with
      phagophore assembly site annotation in this review.
- term:
    id: GO:0003924
    label: GTPase activity
  evidence_type: IEA
  original_reference_id: GO_REF:0000002
  qualifier: enables
  review:
    summary: >-
      Rab7 has intrinsic GTPase activity (EC 3.6.5.2) hydrolyzing GTP to GDP,
      accelerated by TBC-domain GAPs.
    action: ACCEPT
    reason: >-
      Core molecular function, fundamental to the molecular-switch behavior;
      directly demonstrated for mouse Rab7 (PMID:16855591).
- term:
    id: GO:0003925
    label: G protein activity
  evidence_type: IEA
  original_reference_id: GO_REF:0000003
  qualifier: enables
  review:
    summary: >-
      Rab7 functions as a G protein, cycling between active GTP-bound and inactive
      GDP-bound states to regulate membrane trafficking.
    action: ACCEPT
    reason: >-
      Accurate core molecular function for a Rab-family small GTPase.
- term:
    id: GO:0005525
    label: GTP binding
  evidence_type: IEA
  original_reference_id: GO_REF:0000002
  qualifier: enables
  review:
    summary: >-
      GTP binding activates Rab7 and enables membrane association and effector
      recruitment.
    action: ACCEPT
    reason: >-
      Core molecular function of the GTPase cycle.
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to lysosomal membranes as a peripheral membrane protein on
      the cytoplasmic face.
    action: ACCEPT
    reason: >-
      Core localization, confirmed experimentally in mouse (e.g. PMID:28063257).
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IEA
  original_reference_id: GO_REF:0000117
  qualifier: located_in
  review:
    summary: >-
      Late endosome localization predicted by ARBA, consistent with abundant
      experimental evidence.
    action: ACCEPT
    reason: >-
      Canonical core localization.
- term:
    id: GO:0005811
    label: lipid droplet
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to lipid droplets during lipophagy, directly demonstrated in
      mouse adipocytes.
    action: ACCEPT
    reason: >-
      Valid localization related to lipophagy; experimentally supported in mouse
      (PMID:23708524).
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to endosome membranes, primarily late endosome membranes.
    action: ACCEPT
    reason: >-
      Accurate localization; the more specific late endosome membrane term is also
      annotated.
- term:
    id: GO:0030670
    label: phagocytic vesicle membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to phagosomal membranes during phagosome maturation.
    action: ACCEPT
    reason: >-
      Core localization for the phagosome maturation function.
- term:
    id: GO:0031410
    label: cytoplasmic vesicle
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to multiple types of cytoplasmic vesicles.
    action: ACCEPT
    reason: >-
      Accurate but general; more specific vesicle annotations are present.
- term:
    id: GO:0031902
    label: late endosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Late endosome membrane is the canonical site for active Rab7.
    action: ACCEPT
    reason: >-
      Core localization where Rab7 recruits effectors for maturation and
      transport.
- term:
    id: GO:0031966
    label: mitochondrial membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 can be recruited to mitochondrial membranes during mitophagy and at
      ER-mitochondria/endosome contact sites.
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent localization during mitophagy rather than constitutive
      mitochondrial residence.
- term:
    id: GO:0033162
    label: melanosome membrane
  evidence_type: IEA
  original_reference_id: GO_REF:0000044
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to melanosome membranes; melanosomes are lysosome-related
      organelles.
    action: KEEP_AS_NON_CORE
    reason: >-
      Cell-type-specific localization relevant to melanocyte biology and
      lysosome-related organelle biogenesis.
- term:
    id: GO:0098588
    label: bounding membrane of organelle
  evidence_type: IEA
  original_reference_id: GO_REF:0000117
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to the bounding membranes of various organelles as a
      peripheral membrane protein.
    action: ACCEPT
    reason: >-
      Accurate general localization consistent with Rab7 membrane-association
      pattern.
# ============ ISO ANNOTATIONS (ORTHOLOG TRANSFER) ============
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: located_in
  review:
    summary: >-
      Lysosomal membrane localization transferred from experimentally
      characterized orthologs.
    action: ACCEPT
    reason: >-
      Core localization, well supported.
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Lysosomal membrane localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization, consistent with mouse experimental data.
- term:
    id: GO:0031902
    label: late endosome membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: located_in
  review:
    summary: >-
      Late endosome membrane localization transferred from orthologs.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0031902
    label: late endosome membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Late endosome membrane localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0033162
    label: melanosome membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Melanosome membrane localization transferred from human ortholog.
    action: KEEP_AS_NON_CORE
    reason: >-
      Cell-type-specific localization in melanocytes (lysosome-related organelle).
- term:
    id: GO:0003924
    label: GTPase activity
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: enables
  review:
    summary: >-
      GTPase activity transferred from human ortholog; also directly demonstrated
      for mouse Rab7.
    action: ACCEPT
    reason: >-
      Core molecular function.
- term:
    id: GO:0003925
    label: G protein activity
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: enables
  review:
    summary: >-
      G protein (molecular switch) activity transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core molecular function for a Rab GTPase.
- term:
    id: GO:0005525
    label: GTP binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: enables
  review:
    summary: >-
      GTP binding transferred from experimentally characterized orthologs.
    action: ACCEPT
    reason: >-
      Core molecular function.
- term:
    id: GO:0005525
    label: GTP binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: enables
  review:
    summary: >-
      GTP binding transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core molecular function.
- term:
    id: GO:0005739
    label: mitochondrion
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Mitochondrial association during mitophagy / at contact sites, transferred
      from human ortholog.
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent localization, not constitutive.
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: colocalizes_with
  review:
    summary: >-
      Lysosome colocalization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Lysosome localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: is_active_in
  review:
    summary: >-
      Active Rab7 functions on the lysosomal membrane (ortholog transfer).
    action: ACCEPT
    reason: >-
      Core site of action.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: colocalizes_with
  review:
    summary: >-
      Late endosome colocalization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: located_in
  review:
    summary: >-
      Late endosome localization transferred from orthologs.
    action: ACCEPT
    reason: >-
      Canonical core localization.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Late endosome localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Canonical core localization.
- term:
    id: GO:0006622
    label: protein targeting to lysosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 targets cargo proteins to the lysosome for degradation (ortholog
      transfer).
    action: ACCEPT
    reason: >-
      Core function in degradative trafficking.
- term:
    id: GO:0007174
    label: epidermal growth factor catabolic process
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 mediates EGF/EGFR degradation through the endolysosomal pathway.
    action: KEEP_AS_NON_CORE
    reason: >-
      Specific instance of the general endosome-to-lysosome degradative function.
- term:
    id: GO:0008333
    label: endosome to lysosome transport
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Endosome-to-lysosome transport transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core biological function.
- term:
    id: GO:0009617
    label: response to bacterium
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 participates in responses to intracellular bacteria via phagosome
      maturation.
    action: KEEP_AS_NON_CORE
    reason: >-
      Downstream physiological consequence of the core phagosome maturation
      function.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: is_active_in
  review:
    summary: >-
      Active Rab7 functions on the endosome membrane (ortholog transfer).
    action: ACCEPT
    reason: >-
      Core site of action.
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Endosome membrane localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0019003
    label: GDP binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: enables
  review:
    summary: >-
      Rab7 binds GDP in its inactive cytosolic state (ortholog transfer).
    action: ACCEPT
    reason: >-
      Core molecular function of the GTPase cycle.
- term:
    id: GO:0019003
    label: GDP binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: enables
  review:
    summary: >-
      GDP binding transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core molecular function.
- term:
    id: GO:0019076
    label: viral release from host cell
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 endolysosomal function is co-opted during certain viral life cycles
      (e.g. HIV-1).
    action: KEEP_AS_NON_CORE
    reason: >-
      Host-pathogen exploitation of Rab7 function rather than a primary
      biological role.
- term:
    id: GO:0022615
    label: protein to membrane docking
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 mediates docking of the retromer coat complex to endosomal membranes.
    action: ACCEPT
    reason: >-
      Core function in retromer recruitment and cargo sorting.
- term:
    id: GO:0030672
    label: synaptic vesicle membrane
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: is_active_in
  review:
    summary: >-
      Rab7 activity at synaptic vesicle membranes / presynaptic endosomes
      (ortholog transfer).
    action: KEEP_AS_NON_CORE
    reason: >-
      Neuron-specific localization relevant to synaptic recycling and neuropathy.
- term:
    id: GO:0030904
    label: retromer complex
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: colocalizes_with
  review:
    summary: >-
      Rab7 colocalizes with the retromer complex on endosomes (ortholog transfer).
    action: ACCEPT
    reason: >-
      Core function; Rab7 recruits retromer for cargo sorting.
- term:
    id: GO:0031267
    label: small GTPase binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: enables
  review:
    summary: >-
      Rab7 can interact with other small GTPases in Rab cascade regulation.
    action: KEEP_AS_NON_CORE
    reason: >-
      Secondary function; Rab7 primarily recruits dedicated effectors.
- term:
    id: GO:0032935
    label: sterol sensor activity
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: contributes_to
  review:
    summary: >-
      Rab7 contributes to sterol sensing via the ORP1L complex (contributes_to
      qualifier).
    action: KEEP_AS_NON_CORE
    reason: >-
      ORP1L carries the sterol-sensing domain; Rab7 scaffolds the complex rather
      than directly sensing sterol.
- term:
    id: GO:0032991
    label: protein-containing complex
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: part_of
  review:
    summary: >-
      Rab7 forms complexes with multiple effectors (RILP, ORP1L, PLEKHM1,
      retromer, HOPS).
    action: ACCEPT
    reason: >-
      Accurate, though general; specific complex memberships are also captured.
- term:
    id: GO:0036466
    label: synaptic vesicle recycling via endosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: involved_in
  review:
    summary: >-
      Rab7 involvement in synaptic vesicle recycling via endosomes (ortholog
      transfer).
    action: KEEP_AS_NON_CORE
    reason: >-
      Neuron-specific process, not a ubiquitous Rab7 function.
- term:
    id: GO:0042147
    label: retrograde transport, endosome to Golgi
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7-dependent retromer recruitment drives endosome-to-Golgi retrograde
      transport (e.g. CI-M6PR).
    action: ACCEPT
    reason: >-
      Core function downstream of retromer recruitment.
- term:
    id: GO:0042632
    label: cholesterol homeostasis
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7-ORP1L coordinates cholesterol sensing and late endosome positioning.
    action: KEEP_AS_NON_CORE
    reason: >-
      Specialized function mediated by the ORP1L effector; not the primary
      degradative role.
- term:
    id: GO:0045022
    label: early endosome to late endosome transport
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 controls the Rab5-to-Rab7 conversion that matures early endosomes into
      late endosomes. Confirmed in vivo in mouse liver as a mediator of late
      endosomal maturation.
    action: ACCEPT
    reason: >-
      Core function; loss of Rab7 perturbs endosomal maturation in vivo.
    supported_by:
      - reference_id: PMID:41814093
        supporting_text: "Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape."
- term:
    id: GO:0045335
    label: phagocytic vesicle
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: located_in
  review:
    summary: >-
      Phagocytic vesicle localization transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Consistent with the phagosome maturation function.
- term:
    id: GO:0045453
    label: bone resorption
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: involved_in
  review:
    summary: >-
      Rab7 is required for osteoclast ruffled-border function and bone resorption,
      directly demonstrated in mouse osteoclasts.
    action: KEEP_AS_NON_CORE
    reason: >-
      Cell-type-specific physiological role; the ruffled border is a
      lysosome-related compartment dependent on Rab7-mediated trafficking.
- term:
    id: GO:0045732
    label: positive regulation of protein catabolic process
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7-mediated endolysosomal and autophagic flux promotes protein
      degradation.
    action: ACCEPT
    reason: >-
      Direct consequence of the core degradative trafficking function.
- term:
    id: GO:0048524
    label: positive regulation of viral process
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 endolysosomal function can be exploited to promote viral processes.
    action: KEEP_AS_NON_CORE
    reason: >-
      Host-pathogen interaction rather than a primary biological role.
- term:
    id: GO:0061462
    label: protein localization to lysosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 directs protein cargo to the lysosome.
    action: ACCEPT
    reason: >-
      Core function in lysosomal targeting.
- term:
    id: GO:0090120
    label: lysosome to ER cholesterol transport
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7-ORP1L complex regulates cholesterol transport from lysosomes to the ER.
    action: KEEP_AS_NON_CORE
    reason: >-
      Specialized lipid-homeostasis function mediated by the ORP1L effector.
- term:
    id: GO:0090383
    label: phagosome acidification
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 regulates phagosomal acidification during maturation.
    action: ACCEPT
    reason: >-
      Part of the core phagosome maturation function.
- term:
    id: GO:0090385
    label: phagosome-lysosome fusion
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Phagosome-lysosome fusion transferred from human ortholog.
    action: ACCEPT
    reason: >-
      Core function in phagolysosome formation.
- term:
    id: GO:0097208
    label: alveolar lamellar body
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: located_in
  review:
    summary: >-
      Rab7 localization to alveolar lamellar bodies (lysosome-related organelles
      of type II pneumocytes).
    action: KEEP_AS_NON_CORE
    reason: >-
      Cell-type-specific localization.
- term:
    id: GO:0098830
    label: presynaptic endosome
  evidence_type: ISO
  original_reference_id: GO_REF:0000096
  qualifier: is_active_in
  review:
    summary: >-
      Rab7 activity at presynaptic endosomes (ortholog transfer).
    action: KEEP_AS_NON_CORE
    reason: >-
      Neuron-specific localization relevant to synaptic function.
- term:
    id: GO:0099638
    label: endosome to plasma membrane protein transport
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 can influence recycling of cargo to the plasma membrane.
    action: KEEP_AS_NON_CORE
    reason: >-
      Secondary function; the primary Rab7 role is degradative trafficking.
- term:
    id: GO:1903542
    label: negative regulation of exosomal secretion
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 can negatively regulate exosome secretion by directing MVBs toward
      lysosomal degradation.
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent regulatory role affecting exosome biogenesis.
- term:
    id: GO:1903543
    label: positive regulation of exosomal secretion
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: involved_in
  review:
    summary: >-
      Rab7 can also positively regulate exosome secretion in the
      syndecan-syntenin-ALIX pathway.
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent; Rab7 has opposing effects on exosome release depending
      on pathway.
- term:
    id: GO:1905394
    label: retromer complex binding
  evidence_type: ISO
  original_reference_id: GO_REF:0000119
  qualifier: enables
  review:
    summary: >-
      Rab7 recruits/binds the retromer complex on endosomes for cargo sorting.
    action: ACCEPT
    reason: >-
      Core molecular function specifying the retromer interaction.
# ============ EXPERIMENTAL (MOUSE) ANNOTATIONS ============
- term:
    id: GO:0003924
    label: GTPase activity
  evidence_type: EXP
  original_reference_id: PMID:16855591
  qualifier: enables
  review:
    summary: >-
      Biochemical study of TBC-domain GAPs directly characterizing Rab7 GTP
      hydrolysis, including the intrinsic GTPase activity accelerated by GAPs.
    action: ACCEPT
    reason: >-
      Core molecular function with direct experimental support.
    supported_by:
      - reference_id: PMID:16855591
        supporting_text: "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism."
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: EXP
  original_reference_id: PMID:28063257
  qualifier: located_in
  review:
    summary: >-
      Experimental localization of Rab7 to the lysosomal membrane in an autophagy
      screen; Rab7 is cited as the defining marker of late endosomes and lysosomes.
    action: ACCEPT
    reason: >-
      Core localization, experimentally supported.
    supported_by:
      - reference_id: PMID:28063257
        supporting_text: "late endosomes (Rab7, Rab9), lysosomes (Rab7) and others"
- term:
    id: GO:0010008
    label: endosome membrane
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Endosome membrane localization by sequence similarity to characterized
      orthologs.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0031410
    label: cytoplasmic vesicle
  evidence_type: EXP
  original_reference_id: PMID:23179371
  qualifier: located_in
  review:
    summary: >-
      Rab7 on cytoplasmic vesicles in a study of CMT2B mutant interaction with
      peripherin; the paper notes Rab7a localizes to late endosomes and controls
      transport to late endosomes/lysosomes and maturation of phagosomes and
      autophagosomes.
    action: ACCEPT
    reason: >-
      Accurate, though general; consistent with vesicular Rab7 localization.
    supported_by:
      - reference_id: PMID:23179371
        supporting_text: "RAB7A is localized to late endosomes and controls transport to late endosomes and lysosomes as well as maturation of phagosomes and autophagosomes"
- term:
    id: GO:0031902
    label: late endosome membrane
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Late endosome membrane localization by sequence similarity.
    action: ACCEPT
    reason: >-
      Core localization.
- term:
    id: GO:0031966
    label: mitochondrial membrane
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Mitochondrial membrane association by sequence similarity (mitophagy /
      contact-site context).
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent localization.
- term:
    id: GO:0033162
    label: melanosome membrane
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Melanosome membrane localization by sequence similarity.
    action: KEEP_AS_NON_CORE
    reason: >-
      Cell-type-specific (melanocyte) localization.
- term:
    id: GO:0003925
    label: G protein activity
  evidence_type: IDA
  original_reference_id: PMID:16855591
  qualifier: enables
  review:
    summary: >-
      Direct demonstration of Rab7 nucleotide-dependent G protein behavior in the
      GAP study.
    action: ACCEPT
    reason: >-
      Core molecular function, directly supported.
    supported_by:
      - reference_id: PMID:16855591
        supporting_text: "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism."
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:38744829
  qualifier: enables
  review:
    summary: >-
      Interaction between Rab7 and the effector RUFY4 in osteoclasts.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative. RUFY4 is a characterized Rab7
      effector for autophagy/lysosome tethering; the functional role is captured
      by trafficking terms.
    supported_by:
      - reference_id: PMID:38744829
        supporting_text: "Recent studies have shown that RUFY4 is an effector of small GTPases such as Rab7"
- term:
    id: GO:0098943
    label: neurotransmitter receptor transport, postsynaptic endosome to lysosome
  evidence_type: IDA
  original_reference_id: PMID:24217640
  qualifier: involved_in
  review:
    summary: >-
      SynGO annotation associating Rab7 with postsynaptic endosome-to-lysosome
      AMPA-receptor trafficking during long-term depression.
    action: KEEP_AS_NON_CORE
    reason: >-
      Revisited in the human/mouse Deliverome comparison. The accessible PMID
      text supports AMPA-receptor movement into late endosomal/lysosomal
      compartments during LTD, which is compatible with Rab7's conserved
      endosome-to-lysosome role. However, the paper emphasizes
      stargazin/AP-2/AP-3A rather than a Rab7-specific perturbation, so this
      should be retained only as a SynGO neuronal-context annotation and not
      treated as core Rab7 biology.
    supported_by:
      - reference_id: PMID:24217640
        supporting_text: "stargazin-AP-3A abrogates the late endosomal/lysosomal
          trafficking of AMPA receptors"
- term:
    id: GO:0098943
    label: neurotransmitter receptor transport, postsynaptic endosome to lysosome
  evidence_type: IMP
  original_reference_id: PMID:24217640
  qualifier: involved_in
  review:
    summary: >-
      SynGO IMP annotation for Rab7 in AMPA-receptor degradative trafficking
      during LTD.
    action: KEEP_AS_NON_CORE
    reason: >-
      Revisited in the human/mouse Deliverome comparison. The PMID supports
      activity-dependent AMPA-receptor routing from early endosomes toward
      late endosomes/lysosomes, a route Rab7 generally controls. Because the
      accessible text identifies stargazin/AP-2/AP-3A as the experimental
      focus and does not give Rab7-specific mechanistic evidence, retain this
      as non-core and indirect.
    supported_by:
      - reference_id: PMID:24217640
        supporting_text: "transport from the cell surface to early endosomes and
          from early endosomes to late endosomes/lysosomes"
- term:
    id: GO:0098978
    label: glutamatergic synapse
  evidence_type: IDA
  original_reference_id: PMID:24217640
  qualifier: is_active_in
  review:
    summary: >-
      SynGO annotation placing Rab7 at glutamatergic synapses in AMPA-receptor
      trafficking.
    action: KEEP_AS_NON_CORE
    reason: >-
      The source is a hippocampal LTD/AMPAR-trafficking study, so the
      glutamatergic-synapse context is biologically plausible for the SynGO
      annotation. It is not a core Rab7 localization, and the accessible text
      does not provide direct Rab7 localization or perturbation evidence, so
      retain only as a context-specific neuronal annotation.
    supported_by:
      - reference_id: PMID:24217640
        supporting_text: "necessary for low-frequency stimulus-evoked LTD in CA1
          hippocampal neurons"
- term:
    id: GO:0098978
    label: glutamatergic synapse
  evidence_type: IMP
  original_reference_id: PMID:24217640
  qualifier: is_active_in
  review:
    summary: >-
      SynGO IMP annotation for Rab7 functional role at glutamatergic synapses
      (LTD).
    action: KEEP_AS_NON_CORE
    reason: >-
      The PMID supports postsynaptic AMPA-receptor trafficking during LTD in
      hippocampal neurons, but the accessible text centers on stargazin and
      adaptor complexes rather than Rab7-specific evidence. Retain the SynGO
      row as a non-core neuronal-context annotation and avoid using it as a
      primary assertion about Rab7 function.
    supported_by:
      - reference_id: PMID:24217640
        supporting_text: "postsynaptic AMPA receptor trafficking mediates LTD"
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:35353806
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a study of TMED2/SMO trafficking, by
      super-resolution 3D-STORM imaging.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:35353806
        supporting_text: "Dual color 3D-STORM analysis showing ERP72 (C), RCAS1 (D) and RAB7 (E) distribution"
- term:
    id: GO:0005765
    label: lysosomal membrane
  evidence_type: IDA
  original_reference_id: PMID:23708524
  qualifier: colocalizes_with
  review:
    summary: >-
      Rab7 colocalizes with lysosomal membranes during autolysosomal lipid
      degradation in adipocytes.
    action: ACCEPT
    reason: >-
      Core localization, experimentally supported in mouse.
    supported_by:
      - reference_id: PMID:23708524
        supporting_text: "RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells."
- term:
    id: GO:0005829
    label: cytosol
  evidence_type: IDA
  original_reference_id: PMID:23708524
  qualifier: located_in
  review:
    summary: >-
      Inactive GDP-bound Rab7 is cytosolic; observed in the lipolysis/lipophagy
      study.
    action: ACCEPT
    reason: >-
      Consistent with the GTPase cycle (cytosolic GDP-bound pool).
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:29712939
  qualifier: enables
  review:
    summary: >-
      Interaction supporting V-ATPase a3-dependent Rab7 recruitment to secretory
      lysosomes.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; the functional relationship is
      captured by recruitment/localization terms.
    supported_by:
      - reference_id: PMID:29712939
        supporting_text: "Rab7, a small GTPase involved in organelle trafficking."
- term:
    id: GO:0005739
    label: mitochondrion
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Mitochondrial association by sequence similarity (mitophagy context).
    action: KEEP_AS_NON_CORE
    reason: >-
      Context-dependent localization, not constitutive.
- term:
    id: GO:0099638
    label: endosome to plasma membrane protein transport
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: >-
      Rab7 influence on plasma-membrane-directed cargo transport by sequence
      similarity.
    action: KEEP_AS_NON_CORE
    reason: >-
      Secondary function relative to the core degradative role.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:27390154
  qualifier: located_in
  review:
    summary: >-
      Rab7 used as the late endosomal marker in a melanocyte WASH/strumpellin
      colocalization study.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:27390154
        supporting_text: "a significant increase in the colocalization of WASH and the late endosomal marker Rab7"
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: IDA
  original_reference_id: PMID:29712939
  qualifier: is_active_in
  review:
    summary: >-
      Active Rab7 functions on (secretory) lysosomes, recruited in a V-ATPase
      a3-dependent manner.
    action: ACCEPT
    reason: >-
      Core site of action, experimentally supported in mouse.
    supported_by:
      - reference_id: PMID:29712939
        supporting_text: "Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment."
- term:
    id: GO:0051650
    label: establishment of vesicle localization
  evidence_type: IMP
  original_reference_id: PMID:29712939
  qualifier: acts_upstream_of_or_within_positive_effect
  review:
    summary: >-
      Rab7 recruitment is required for proper trafficking/positioning of secretory
      lysosomes (V-ATPase a3-dependent).
    action: ACCEPT
    reason: >-
      Consistent with the established Rab7 role in vesicle/organelle positioning.
    supported_by:
      - reference_id: PMID:29712939
        supporting_text: "Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking via Rab7 Recruitment."
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:25592972
  qualifier: located_in
  review:
    summary: >-
      Rab7 used as a late-endosome marker in subcellular fractionation in a study
      of BACE1 lysosomal targeting.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:25592972
        supporting_text: "immunoblotted for BACE1, APP, rab5, or rab7"
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:27777970
  qualifier: enables
  review:
    summary: >-
      Rab7 binds the PLEKHM1/DEF8 lysosome-positioning effector complex.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative. PLEKHM1 is a well-characterized
      Rab7 effector; the function is captured by lysosome positioning/trafficking
      terms.
    supported_by:
      - reference_id: PMID:27777970
        supporting_text: "PLEKHM1 binds to RAB7 and is critical for lysosome trafficking."
- term:
    id: GO:0005768
    label: endosome
  evidence_type: IDA
  original_reference_id: PMID:26582200
  qualifier: located_in
  review:
    summary: >-
      Rab7 on endosomes in a study of Lifeguard/Fas signaling.
    action: ACCEPT
    reason: >-
      Accurate, though general; more specific late endosome terms are also
      annotated.
- term:
    id: GO:0005811
    label: lipid droplet
  evidence_type: IDA
  original_reference_id: PMID:23708524
  qualifier: located_in
  review:
    summary: >-
      Rab7 localizes to lipid droplets and the LD-associated pool drives their
      autophagic degradation during beta-adrenergic lipolysis in mouse adipocytes.
    action: ACCEPT
    reason: >-
      Experimentally supported localization underpinning the lipophagy function.
    supported_by:
      - reference_id: PMID:23708524
        supporting_text: "ADRB2 stimulation has caused a marked increase in the autophagy-targeted LDs for lysosomal degradation, which is dependent on the LD-associated RAB7"
- term:
    id: GO:0031902
    label: late endosome membrane
  evidence_type: IDA
  original_reference_id: PMID:23708524
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosome membranes in the adipocyte lipolysis/lipophagy study.
    action: ACCEPT
    reason: >-
      Core localization, experimentally supported.
    supported_by:
      - reference_id: PMID:23708524
        supporting_text: "RAB7, being primarily associated with late endosomes, is
          a central factor in endosomal trafficking"
- term:
    id: GO:0061724
    label: lipophagy
  evidence_type: IMP
  original_reference_id: PMID:23708524
  qualifier: involved_in
  review:
    summary: >-
      Rab7 is required for autolysosome-mediated lipid-droplet degradation
      (lipophagy) in fat cells, shown by knockdown and dominant-negative mutant.
    action: ACCEPT
    reason: >-
      Directly demonstrated mouse function; a specialized branch of the core
      autophagy role.
    supported_by:
      - reference_id: PMID:23708524
        supporting_text: "RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells."
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:24760869
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a study of Nedd4-2/TrkA trafficking.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
- term:
    id: GO:0034045
    label: phagophore assembly site membrane
  evidence_type: IDA
  original_reference_id: PMID:19956673
  qualifier: located_in
  review:
    summary: >-
      Rab7 at the phagophore assembly site during formation of GAS-containing
      autophagosome-like vacuoles (GcAVs).
    action: ACCEPT
    reason: >-
      Consistent with the Rab7 role in autophagy.
    supported_by:
      - reference_id: PMID:19956673
        supporting_text: "Rab7, a member of the small GTPase Rab family, may be involved in GcAV formation"
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:24334765
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a study of TMEM127 endolysosomal function.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:22467241
  qualifier: enables
  review:
    summary: >-
      Rab7 interaction in the context of ATP6AP1/Ac45 and osteoclast lysosomal
      trafficking.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; the relevant function is
      lysosomal trafficking in osteoclasts.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:24035762
  qualifier: located_in
  review:
    summary: >-
      Rab7 used as a late-endosome marker (co-staining with NHE6) in a study of
      TrkB endosomal signaling.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:24035762
        supporting_text: "Rab7-associated endosomes (late endosomes)"
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:24549040
  qualifier: enables
  review:
    summary: >-
      Rab7 interaction in the context of C9ORF72 endosomal trafficking.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; C9ORF72 regulates Rab-mediated
      endosomal trafficking, captured by trafficking terms.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:22275436
  qualifier: enables
  review:
    summary: >-
      Rab7 interaction in melanoregulin/RILP-p150Glued retrograde melanosome
      transport.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; the RILP effector axis is
      captured by trafficking/transport terms.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:23028046
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a macrophage anthrax-toxin/MLN64 study.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
- term:
    id: GO:0005737
    label: cytoplasm
  evidence_type: IDA
  original_reference_id: PMID:18656450
  qualifier: located_in
  review:
    summary: >-
      Cytoplasmic localization observed in a cGKII/Rab11 trafficking study.
    action: ACCEPT
    reason: >-
      Accurate but general; the cytosol and specific vesicular compartments are
      more informative and also annotated.
- term:
    id: GO:0045335
    label: phagocytic vesicle
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: located_in
  review:
    summary: >-
      Phagocytic vesicle localization by sequence similarity.
    action: ACCEPT
    reason: >-
      Consistent with the phagosome maturation function.
- term:
    id: GO:0090383
    label: phagosome acidification
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: >-
      Phagosome acidification by sequence similarity.
    action: ACCEPT
    reason: >-
      Part of the core phagosome maturation function.
- term:
    id: GO:0090385
    label: phagosome-lysosome fusion
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: >-
      Phagosome-lysosome fusion by sequence similarity.
    action: ACCEPT
    reason: >-
      Core function in phagolysosome formation.
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:19368996
  qualifier: enables
  review:
    summary: >-
      Rab7 interaction in a study of the drs tumor suppressor in autophagy
      maturation.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; the autophagy maturation role
      is captured by autophagy terms.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:19509052
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a Derlin membrane-protein accumulation study.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
- term:
    id: GO:0045022
    label: early endosome to late endosome transport
  evidence_type: ISS
  original_reference_id: GO_REF:0000024
  qualifier: involved_in
  review:
    summary: >-
      Early-to-late endosome transport by sequence similarity (Rab5-to-Rab7
      conversion).
    action: ACCEPT
    reason: >-
      Core function in endosomal maturation.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:20943658
  qualifier: located_in
  review:
    summary: >-
      Rab7 marks the late endosomes to which Nmnat2 localizes.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:20943658
        supporting_text: "Nmnat2 localizes to Rab7-containing late endosomes"
- term:
    id: GO:0005515
    label: protein binding
  evidence_type: IPI
  original_reference_id: PMID:12972561
  qualifier: enables
  review:
    summary: >-
      Identification of Rabring7 (BCA2/RNF115) as a Rab7 target protein with a
      RING finger motif.
    action: REMOVE
    reason: >-
      GO:0005515 protein binding is uninformative; this is a specific effector
      interaction whose function is better captured by other terms.
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:15588329
  qualifier: located_in
  review:
    summary: >-
      Rab7 used as the late endosomal marker in a juvenile neuronal ceroid
      lipofuscinosis cerebellar cell model.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
    supported_by:
      - reference_id: PMID:15588329
        supporting_text: "the late endosomal marker, Rab7"
- term:
    id: GO:0005764
    label: lysosome
  evidence_type: ISO
  original_reference_id: PMID:15078902
  qualifier: located_in
  review:
    summary: >-
      Lysosome localization transferred from the retromer ortholog study, where
      the retromer subunit VPS26 colocalizes with Rab7.
    action: ACCEPT
    reason: >-
      Core localization.
    supported_by:
      - reference_id: PMID:15078902
        supporting_text: "modest colocalization between mVPS26 and GFP-rab7"
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: ISO
  original_reference_id: PMID:15078902
  qualifier: located_in
  review:
    summary: >-
      Late endosome localization transferred from the retromer ortholog study,
      where the retromer subunit VPS26 colocalizes with Rab7.
    action: ACCEPT
    reason: >-
      Core localization.
    supported_by:
      - reference_id: PMID:15078902
        supporting_text: "modest colocalization between mVPS26 and GFP-rab7"
- term:
    id: GO:0005770
    label: late endosome
  evidence_type: IDA
  original_reference_id: PMID:11172003
  qualifier: located_in
  review:
    summary: >-
      Rab7 on late endosomes in a study of the Rab4 effector Rabip4.
    action: ACCEPT
    reason: >-
      Core localization, experimentally observed.
- term:
    id: GO:0006886
    label: intracellular protein transport
  evidence_type: TAS
  original_reference_id: PMID:11042173
  qualifier: acts_upstream_of_or_within
  review:
    summary: >-
      Rab7 general role in intracellular protein transport, from a Golgi membrane
      proteomics paper.
    action: KEEP_AS_NON_CORE
    reason: >-
      Too general; the specific endosome-to-lysosome and retrograde transport
      terms capture the actual function more precisely.
- term:
    id: GO:0005794
    label: Golgi apparatus
  evidence_type: IDA
  original_reference_id: PMID:11042173
  qualifier: located_in
  review:
    summary: >-
      Rab7 detected in a bulk proteomic characterization of abundant Golgi
      membrane proteins.
    action: MARK_AS_OVER_ANNOTATED
    reason: >-
      Rab7 is a late-endosome/lysosome GTPase; detection in a Golgi membrane
      fraction most plausibly reflects co-fractionation/contamination or transient
      retrograde-pathway association rather than a genuine steady-state Golgi pool.
      Not a core localization.

core_functions:
  - molecular_function:
      id: GO:0003924
      label: GTPase activity
    description: >-
      Rab7 functions as a small GTPase molecular switch (EC 3.6.5.2), cycling
      between an inactive GDP-bound (cytosolic) and an active GTP-bound
      (membrane-associated) state. Activation by the Mon1-Ccz1 GEF on maturing
      endosomes and inactivation by TBC-domain GAPs underpins its control of late
      endocytic trafficking, autophagy (including lipophagy), phagosome
      maturation and lysosome biogenesis.
    directly_involved_in:
      - id: GO:0008333
        label: endosome to lysosome transport
      - id: GO:0045022
        label: early endosome to late endosome transport
      - id: GO:0042147
        label: retrograde transport, endosome to Golgi
      - id: GO:0090385
        label: phagosome-lysosome fusion
      - id: GO:0061724
        label: lipophagy
    locations:
      - id: GO:0005770
        label: late endosome
      - id: GO:0005764
        label: lysosome
      - id: GO:0031902
        label: late endosome membrane
      - id: GO:0000421
        label: autophagosome membrane
      - id: GO:0005811
        label: lipid droplet
    supported_by:
      - reference_id: PMID:16855591
        supporting_text: "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism."
      - reference_id: PMID:41814093
        supporting_text: "Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape."
      - reference_id: PMID:23708524
        supporting_text: "RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells."
  - molecular_function:
      id: GO:1905394
      label: retromer complex binding
    description: >-
      Active Rab7 recruits and binds the retromer complex on late endosomes,
      docking it to the membrane to drive cargo-selective endosome-to-Golgi
      retrograde transport.
    directly_involved_in:
      - id: GO:0042147
        label: retrograde transport, endosome to Golgi
      - id: GO:0022615
        label: protein to membrane docking
    locations:
      - id: GO:0005770
        label: late endosome

proposed_new_terms: []

suggested_questions:
  - question: >-
      The Nature Biotechnology study (PMID:41814093) shows that loss of Rab7
      increases cytosolic escape of lipid nanoparticles in mouse liver. Does Rab7
      activity define a general, druggable checkpoint that partitions endocytosed
      cargo between degradation and cytosolic escape, and can transient Rab7
      modulation be exploited to enhance therapeutic nucleic-acid delivery?
  - question: >-
      How are the tissue-specialized Rab7 functions (adipocyte lipophagy,
      synaptic AMPA-receptor turnover, osteoclast ruffled-border trafficking)
      differentially wired through distinct effectors despite a single ubiquitous
      GTPase switch?

suggested_experiments:
  - description: >-
      Use the LysoTag/Lysosomal Barcoding in vivo endosomal-escape assay
      (PMID:41814093) across conditional Rab7 (Rab7a) knockout tissues to quantify,
      in a tissue-resolved manner, how Rab7 loss shifts the balance between
      lysosomal degradation and cytosolic escape of endocytosed cargo.
  - description: >-
      Effector-interaction profiling (proximity labeling) of mouse Rab7 in
      adipocytes, neurons and osteoclasts to map the cell-type-specific effector
      modules that route the common Rab7 switch to lipophagy, synaptic receptor
      degradation and ruffled-border trafficking, respectively.

references:
  - id: GO_REF:0000002
    title: Gene Ontology annotation through association of InterPro records with GO
      terms
    findings: []
  - id: GO_REF:0000003
    title: Gene Ontology annotation based on Enzyme Commission mapping
    findings: []
  - 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:0000096
    title: Automated transfer of experimentally-verified manual GO annotation data to
      mouse-rat orthologs
    findings: []
  - id: GO_REF:0000117
    title: Electronic Gene Ontology annotations created by ARBA machine learning models
    findings: []
  - id: GO_REF:0000119
    title: Automated transfer of experimentally-verified manual GO annotation data to
      mouse-human orthologs
    findings: []
  - id: PMID:11042173
    title: Proteomics characterization of abundant Golgi membrane proteins.
    findings:
      - statement: Rab7 was detected in a bulk proteomic fraction of Golgi membranes
        supporting_text: "Proteomics characterization of abundant Golgi membrane proteins."
  - id: PMID:11172003
    title: A FYVE-finger-containing protein, Rabip4, is a Rab4 effector involved in
      early endosomal traffic.
    findings: []
  - id: PMID:12972561
    title: Rabring7, a novel Rab7 target protein with a RING finger motif.
    findings: []
  - id: PMID:15078902
    title: Cargo-selective endosomal sorting for retrieval to the Golgi requires retromer.
    findings: []
  - id: PMID:15588329
    title: Membrane trafficking and mitochondrial abnormalities precede subunit c deposition
      in a cerebellar cell model of juvenile neuronal ceroid lipofuscinosis.
    findings: []
  - id: PMID:16855591
    title: TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger
      mechanism.
    findings:
      - statement: TBC-domain GAPs accelerate Rab7 GTP hydrolysis
        supporting_text: "TBC-domain GAPs for Rab GTPases accelerate GTP hydrolysis by a dual-finger mechanism."
  - id: PMID:18656450
    title: Trafficking of cGMP-dependent protein kinase II via interaction with Rab11.
    findings: []
  - id: PMID:19368996
    title: The drs tumor suppressor is involved in the maturation process of autophagy
      induced by low serum.
    findings: []
  - id: PMID:19509052
    title: Derlin-dependent accumulation of integral membrane proteins at cell surfaces.
    findings: []
  - id: PMID:19956673
    title: An initial step of GAS-containing autophagosome-like vacuoles formation requires
      Rab7.
    findings: []
  - id: PMID:20943658
    title: Expression, localization, and biochemical characterization of nicotinamide
      mononucleotide adenylyltransferase 2.
    findings: []
  - id: PMID:22275436
    title: Melanoregulin regulates retrograde melanosome transport through interaction
      with the RILP-p150Glued complex in melanocytes.
    findings: []
  - id: PMID:22467241
    title: V-ATPase subunit ATP6AP1 (Ac45) regulates osteoclast differentiation, extracellular
      acidification, lysosomal trafficking, and protease exocytosis in osteoclast-mediated
      bone resorption.
    findings: []
  - id: PMID:23028046
    title: Cellular adaptation to anthrax lethal toxin-induced mitochondrial cholesterol
      enrichment, hyperpolarization, and reactive oxygen species generation through
      downregulating MLN64 in macrophages.
    findings: []
  - id: PMID:23179371
    title: Charcot-Marie-Tooth type 2B disease-causing RAB7A mutant proteins show altered
      interaction with the neuronal intermediate filament peripherin.
    findings: []
  - id: PMID:23708524
    title: β-adrenergic receptor-stimulated lipolysis requires the RAB7-mediated autolysosomal
      lipid degradation.
    findings:
      - statement: Rab7 is required for lipophagy of lipid droplets in fat cells
        supporting_text: "RAB7 plays a pivotal role in the regulation of this autolysosome-mediated lipid degradation in fat cells."
      - statement: LD-associated Rab7 mediates autophagic targeting of lipid droplets
        supporting_text: "ADRB2 stimulation has caused a marked increase in the autophagy-targeted LDs for lysosomal degradation, which is dependent on the LD-associated RAB7"
  - id: PMID:24035762
    title: Christianson syndrome protein NHE6 modulates TrkB endosomal signaling required
      for neuronal circuit development.
    findings: []
  - id: PMID:24217640
    title: Stargazin regulates AMPA receptor trafficking through adaptor protein complexes
      during long-term depression.
    findings: []
  - id: PMID:24334765
    title: The tumor susceptibility gene TMEM127 is mutated in renal cell carcinomas
      and modulates endolysosomal function.
    findings: []
  - id: PMID:24549040
    title: C9ORF72, implicated in amytrophic lateral sclerosis and frontotemporal dementia,
      regulates endosomal trafficking.
    findings: []
  - id: PMID:24760869
    title: In vivo regulation of NGF-mediated functions by Nedd4-2 ubiquitination of
      TrkA.
    findings: []
  - id: PMID:25592972
    title: An aberrant sugar modification of BACE1 blocks its lysosomal targeting in
      Alzheimer's disease.
    findings: []
  - id: PMID:26582200
    title: Lifeguard Inhibits Fas Ligand-mediated Endoplasmic Reticulum-Calcium Release
      Mandatory for Apoptosis in Type II Apoptotic Cells.
    findings: []
  - id: PMID:27390154
    title: Loss of strumpellin in the melanocytic lineage impairs the WASH Complex but
      does not affect coat colour.
    findings: []
  - id: PMID:27777970
    title: PLEKHM1/DEF8/RAB7 complex regulates lysosome positioning and bone homeostasis.
    findings:
      - statement: PLEKHM1 binds Rab7 and is critical for lysosome trafficking
        supporting_text: "PLEKHM1 binds to RAB7 and is critical for lysosome trafficking."
  - id: PMID:28063257
    title: Genetic screen in Drosophila muscle identifies autophagy-mediated T-tubule
      remodeling and a Rab2 role in autophagy.
    findings: []
  - id: PMID:29712939
    title: Essential Role of the a3 Isoform of V-ATPase in Secretory Lysosome Trafficking
      via Rab7 Recruitment.
    findings:
      - statement: Rab7 is a small GTPase involved in organelle trafficking, recruited
          to secretory lysosomes in a V-ATPase a3-dependent manner
        supporting_text: "Rab7, a small GTPase involved in organelle trafficking."
  - id: PMID:35353806
    title: TMED2 binding restricts SMO to the ER and Golgi compartments.
    findings: []
  - id: PMID:38744829
    title: RUFY4 deletion prevents pathological bone loss by blocking endo-lysosomal
      trafficking of osteoclasts.
    findings:
      - statement: RUFY4 is an effector of small GTPases including Rab7
        supporting_text: "Recent studies have shown that RUFY4 is an effector of small GTPases such as Rab7"
      - statement: Rab7 is enriched at the osteoclast ruffled border and required for
          bone resorption
        supporting_text: "Notably, Rab7 is highly expressed at the ruffled border of bone-resorbing osteoclasts and its knockdown disrupts both the targeting of vesicles to the ruffled border and bone resorption."
  - id: PMID:41814093
    title: In vivo endosomal escape assay identifies mechanisms for efficient hepatic
      LNP delivery.
    findings:
      - statement: Rab7 is a mediator of late endosomal maturation; its loss increases
          cytosolic escape of lipid nanoparticles in mouse liver
        supporting_text: "Loss of Rab7, a mediator of late endosomal maturation, increased LNP escape."
      - statement: LysoTag mice enable immunoisolation of liver lysosomes to quantify
          in vivo endosomal escape
        supporting_text: "we used LysoTag mice, which allow immunoisolation of liver lysosomes"
  - id: file:mouse/Rab7/Rab7-deep-research-manual.md
    title: Manual research synthesis for mouse Rab7 (deep-research providers unavailable)
    findings: []