VAPA

UniProt ID: Q9P0L0
Organism: Homo sapiens
Review Status: IN PROGRESS
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Gene Description

VAPA is a tail-anchored endoplasmic-reticulum membrane adaptor and tether. Its cytoplasmic major sperm protein (MSP) domain recognizes FFAT-family motifs in lipid-transfer proteins and other partners, organizing contact sites with endosomes, Golgi and plasma membrane. VAPA supplies membrane anchoring and spatial recruitment, while associated proteins carry lipids or perform catalytic reactions. It also contributes to membrane traffic, organelle organization and signaling through context-specific partner complexes.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0000139 Golgi membrane
IDA
PMID:24209621
A four-step cycle driven by PI(4)P hydrolysis directs sterol...
KEEP AS NON CORE
Summary: The ERโ€“Golgi contact role is established, while Golgi-side residence needs topological care.
Reason: OSBP binds VAPA at the ER and Golgi phosphoinositides through its PH domain. A contact-site localization is mechanistically sound; a broad Golgi-membrane observation is retained as non-core without claiming that the canonical VAPA membrane anchor is inserted into Golgi rather than ER.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0005515 protein binding
IPI
PMID:10544080
Hepatitis C virus RNA polymerase and NS5A complex with a SNA...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:10544080 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:10544080
Hepatitis C virus RNA polymerase and NS5A complex with a SNA...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:10544080 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16227268 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16227268 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16227268 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16227268 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16227268 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16895911
Efficient trafficking of ceramide from the endoplasmic retic...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16895911 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:16996479
Subproteomic study of hepatitis C virus replicon reveals Ras...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:16996479 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:18160438
Human butyrate-induced transcript 1 interacts with hepatitis...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:18160438 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:19289470
Promotion of neurite extension by protrudin requires its int...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:19289470 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:19515777 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:19515777 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:19515777 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:19615732
Defining the human deubiquitinating enzyme interaction lands...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:19615732 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:20029029
Regulation of epidermal growth factor receptor trafficking b...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:20029029 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21900206
A directed protein interaction network for investigating int...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21900206 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21957124
Viperin inhibits hepatitis C virus replication by interferin...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21957124 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21957124
Viperin inhibits hepatitis C virus replication by interferin...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21957124 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21957124
Viperin inhibits hepatitis C virus replication by interferin...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21957124 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21976701
Protrudin serves as an adaptor molecule that connects KIF5 a...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21976701 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:21976701
Protrudin serves as an adaptor molecule that connects KIF5 a...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:21976701 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:22045669
The antiviral protein viperin inhibits hepatitis C virus rep...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:22045669 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:23736259
The ALS8 protein VAPB interacts with the ER-Golgi recycling ...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:23736259 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:23840749
MOR is not enough: identification of novel mu-opioid recepto...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:23840749 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:23935497
Rab18 binds to hepatitis C virus NS5A and promotes interacti...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:23935497 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:24105263
STARD3 or STARD3NL and VAP form a novel molecular tether bet...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:24105263 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:24209621
A four-step cycle driven by PI(4)P hydrolysis directs sterol...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:24209621 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:25616068
A combined proteomics/genomics approach links hepatitis C vi...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:25616068 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:25616068
A combined proteomics/genomics approach links hepatitis C vi...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:25616068 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:25681634
Sterol liganding of OSBP-related proteins (ORPs) regulates t...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:25681634 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:25681634
Sterol liganding of OSBP-related proteins (ORPs) regulates t...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:25681634 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:25910212
Widespread macromolecular interaction perturbations in human...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:25910212 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:26496610
A human interactome in three quantitative dimensions organiz...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:26496610 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:26496610
A human interactome in three quantitative dimensions organiz...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:26496610 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:26496610
A human interactome in three quantitative dimensions organiz...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:26496610 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:26496610
A human interactome in three quantitative dimensions organiz...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:26496610 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:26618866
โˆ†F508 CFTR interactome remodelling promotes rescue of cystic...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:26618866 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:28298427
Systematic protein-protein interaction mapping for clinicall...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:28298427 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:28377464
STARD3 mediates endoplasmic reticulum-to-endosome cholestero...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:28377464 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:29858488
Identification of MOSPD2, a novel scaffold for endoplasmic r...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:29858488 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:29997244
LuTHy: a double-readout bioluminescence-based two-hybrid tec...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:29997244 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:30659099
The activity of Sac1 across ER-TGN contact sites requires th...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:30659099 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:30659099
The activity of Sac1 across ER-TGN contact sites requires th...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:30659099 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:30741634
Human VPS13A is associated with multiple organelles and infl...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:30741634 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:31980649
Extensive rewiring of the EGFR network in colorectal cancer ...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:31980649 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32296183 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32344433
GRAF2, WDR44, and MICAL1 mediate Rab8/10/11-dependent export...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32344433 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:32814053 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33124732 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33124732 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:33961781 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35156780
CFTR interactome mapping using the mammalian membrane two-hy...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35156780 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35271311 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:35384245
Physical and functional interactome atlas of human receptor ...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:35384245 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:36012204
Differential CFTR-Interactome Proximity Labeling Procedures ...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:36012204 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:40205054 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:40205054 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:40205054 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:40205054 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
KEEP AS NON CORE
Summary: Retain the curated interaction as a non-core binding observation.
Reason: The IPI observation from PMID:40205054 records an interaction with the listed partner. VAPA's core function is FFAT-dependent membrane recruitment and tethering; generic protein binding does not establish that every partner uses that mechanism or that each interaction defines an additional physiological role. The observation is retained without inferring function from interaction alone.
GO:0005783 endoplasmic reticulum
HDA
PMID:16791210
Dynamic proteomics in individual human cells uncovers widesp...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005783 endoplasmic reticulum
IDA
GO_REF:0000052
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005783 endoplasmic reticulum
IDA
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005783 endoplasmic reticulum
IDA
PMID:19289470
Promotion of neurite extension by protrudin requires its int...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005783 endoplasmic reticulum
IEA
GO_REF:0000107
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IBA
GO_REF:0000033
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:12023275
Vesicle-associated membrane protein-associated protein-A (VA...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:19564404
Cholesterol sensor ORP1L contacts the ER protein VAP to cont...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:30741634
Human VPS13A is associated with multiple organelles and infl...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:32234213
Calcium-stimulated disassembly of focal adhesions mediated b...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:32344433
GRAF2, WDR44, and MICAL1 mediate Rab8/10/11-dependent export...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IDA
PMID:41856286
Glycolipid transfer protein modulates vesicular trafficking ...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
IEA
GO_REF:0000120
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
TAS
Reactome:R-HSA-429730
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005789 endoplasmic reticulum membrane
TAS
Reactome:R-HSA-9956909
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005829 cytosol
TAS
Reactome:R-HSA-9609921
KEEP AS NON CORE
Summary: Retain the ancillary localization without replacing the principal ER-membrane topology.
Reason: The curated source reports this location or pathway-associated pool. VAPA has a cytosol-facing ER domain and peripheral/perinuclear membrane pools; such observations do not make the intact canonical protein a freely soluble cytosolic factor or establish an independent core function.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0005886 plasma membrane
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0005886 plasma membrane
IDA
PMID:10523508
VAP-33 localizes to both an intracellular vesicle population...
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0005886 plasma membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-6798739
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0005923 bicellular tight junction
IDA
PMID:10523508
VAP-33 localizes to both an intracellular vesicle population...
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0005923 bicellular tight junction
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0006649 phospholipid transfer to membrane
IDA
PMID:39106189
The ORP9-ORP11 dimer promotes sphingomyelin synthesis.
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0006672 ceramide metabolic process
EXP
PMID:34688657
Intellectual-disability-associated mutations in the ceramide...
ACCEPT
Summary: VAPA participates in ceramide trafficking and sphingomyelin production through lipid-transfer-protein recruitment.
Reason: The VAPAโ€“OSBP perturbation study PMID:12023275 links ER ceramide retention to reduced Golgi export and sphingomyelin synthesis. VAPA is a membrane-contact adaptor rather than the lipid carrier or sphingomyelin synthase. This supports participation in the annotated process without assigning intrinsic lipid-transfer chemistry. The cited CERT-mutant study observes VAP-A-positive puncta; the interpretation is supported jointly with the direct VAPA perturbation evidence.
Supporting Evidence:
PMID:12023275
A fluorescent ceramide analogue also accumulated in these ER inclusions, and export to the Golgi was partially inhibited
GO:0006686 sphingomyelin biosynthetic process
IMP
PMID:12023275
Vesicle-associated membrane protein-associated protein-A (VA...
ACCEPT
Summary: VAPA participates in ceramide trafficking and sphingomyelin production through lipid-transfer-protein recruitment.
Reason: The VAPAโ€“OSBP perturbation study PMID:12023275 links ER ceramide retention to reduced Golgi export and sphingomyelin synthesis. VAPA is a membrane-contact adaptor rather than the lipid carrier or sphingomyelin synthase. This supports participation in the annotated process without assigning intrinsic lipid-transfer chemistry.
Supporting Evidence:
PMID:12023275
A fluorescent ceramide analogue also accumulated in these ER inclusions, and export to the Golgi was partially inhibited
GO:0006888 endoplasmic reticulum to Golgi vesicle-mediated transport
IDA
PMID:41856286
Glycolipid transfer protein modulates vesicular trafficking ...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0006888 endoplasmic reticulum to Golgi vesicle-mediated transport
IMP
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0007029 endoplasmic reticulum organization
IMP NOT
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0008017 microtubule binding
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Microtubule association is a supported ancillary property.
Reason: The VAPA overexpression study links inhibited lateral membrane diffusion to stable microtubule association and reports disruption by FFAT peptide. This supports association without making VAPA a motor or a primary microtubule structural subunit.
Supporting Evidence:
PMID:18713837
Application of a FFAT peptide restored in vitro ER vesicle budding and disrupted VAP-microtubule association.
GO:0008017 microtubule binding
IMP
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
KEEP AS NON CORE
Summary: Microtubule association is a supported ancillary property.
Reason: The VAPA overexpression study links inhibited lateral membrane diffusion to stable microtubule association and reports disruption by FFAT peptide. This supports association without making VAPA a motor or a primary microtubule structural subunit.
Supporting Evidence:
PMID:18713837
Application of a FFAT peptide restored in vitro ER vesicle budding and disrupted VAP-microtubule association.
GO:0015630 microtubule cytoskeleton
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Microtubule association is a supported ancillary property.
Reason: The VAPA overexpression study links inhibited lateral membrane diffusion to stable microtubule association and reports disruption by FFAT peptide. This supports association without making VAPA a motor or a primary microtubule structural subunit.
Supporting Evidence:
PMID:18713837
Application of a FFAT peptide restored in vitro ER vesicle budding and disrupted VAP-microtubule association.
GO:0015914 phospholipid transport
IDA
PMID:24209621
A four-step cycle driven by PI(4)P hydrolysis directs sterol...
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0015918 sterol transport
IDA
PMID:24209621
A four-step cycle driven by PI(4)P hydrolysis directs sterol...
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0019076 viral release from host cell
IDA
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0019076 viral release from host cell
IEA
GO_REF:0000117
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0019904 protein domain specific binding
IPI
PMID:20178991
Electrostatic interaction between oxysterol-binding protein ...
MODIFY
Summary: FFAT motif binding gives a more informative molecular description.
Reason: The VAPAโ€“OSBP interaction is mediated by the FFAT recognition surface of the MSP domain; the specific FFAT motif term captures this directly demonstrated mechanism.
Proposed replacements: FFAT motif binding
Supporting Evidence:
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0030301 cholesterol transport
IDA
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0030301 cholesterol transport
IEA
GO_REF:0000117
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0031175 neuron projection development
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Neuronal projection development is a supported downstream context of VAPA trafficking.
Reason: VAPA binds the protrudin/ZFYVE27 pathway and helps organize membrane delivery in neuronal processes. The developmental phenotype is retained as non-core rather than being treated as a separate biochemical activity.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
Interacts (via MSP domain) with ZFYVE27
GO:0031175 neuron projection development
IMP
PMID:19289470
Promotion of neurite extension by protrudin requires its int...
KEEP AS NON CORE
Summary: Neuronal projection development is a supported downstream context of VAPA trafficking.
Reason: VAPA binds the protrudin/ZFYVE27 pathway and helps organize membrane delivery in neuronal processes. The developmental phenotype is retained as non-core rather than being treated as a separate biochemical activity.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
Interacts (via MSP domain) with ZFYVE27
GO:0031965 nuclear membrane
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Retain the ancillary localization without replacing the principal ER-membrane topology.
Reason: The curated source reports this location or pathway-associated pool. VAPA has a cytosol-facing ER domain and peripheral/perinuclear membrane pools; such observations do not make the intact canonical protein a freely soluble cytosolic factor or establish an independent core function.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0031965 nuclear membrane
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Retain the ancillary localization without replacing the principal ER-membrane topology.
Reason: The curated source reports this location or pathway-associated pool. VAPA has a cytosol-facing ER domain and peripheral/perinuclear membrane pools; such observations do not make the intact canonical protein a freely soluble cytosolic factor or establish an independent core function.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0031982 vesicle
IDA
PMID:10523508
VAP-33 localizes to both an intracellular vesicle population...
KEEP AS NON CORE
Summary: Retain the reported peripheral membrane/junctional/vesicular pool.
Reason: The primary localization study detects VAP-33 with occludin at tight junctions and in intracellular vesicles. These pools are compatible with the ER-tether biology but are not the principal site of core function.
Supporting Evidence:
PMID:10523508
Antibodies to the human VAP-33 co-localized with occludin at the tight junction in many tissues and tissue culture cell lines.
GO:0032374 regulation of cholesterol transport
IDA
PMID:41741634
STARD3 regulates lysosome positioning and contacts via a GSK...
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0033149 FFAT motif binding
IDA
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
ACCEPT
Summary: FFAT motif recognition is a directly established molecular activity.
Reason: MSP-domain structures and peptide pull-down assays establish binding to conventional and phosphorylated FFAT motifs. This specific activity explains recruitment of lipid-transfer and trafficking partners.
Supporting Evidence:
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0033149 FFAT motif binding
IEA
GO_REF:0000117
ACCEPT
Summary: FFAT motif recognition is a directly established molecular activity.
Reason: MSP-domain structures and peptide pull-down assays establish binding to conventional and phosphorylated FFAT motifs. This specific activity explains recruitment of lipid-transfer and trafficking partners.
Supporting Evidence:
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0033149 FFAT motif binding
IMP
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: FFAT motif recognition is a directly established molecular activity.
Reason: MSP-domain structures and peptide pull-down assays establish binding to conventional and phosphorylated FFAT motifs. This specific activity explains recruitment of lipid-transfer and trafficking partners.
Supporting Evidence:
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0034975 protein folding in endoplasmic reticulum
IMP NOT
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
UNDECIDED
Summary: A direct protein-folding role is not established by the inspected trafficking evidence.
Reason: The cited experiment describes ER-to-Golgi traffic and VAP-dependent ER organization. Such perturbations can affect handling of misfolded cargo without showing that VAPA performs or directly participates in protein folding. The complete relevant experimental context is needed before accepting or rejecting this process assignment.
GO:0035577 azurophil granule membrane
TAS
Reactome:R-HSA-6798739
KEEP AS NON CORE
Summary: Retain the ancillary localization without replacing the principal ER-membrane topology.
Reason: The curated source reports this location or pathway-associated pool. VAPA has a cytosol-facing ER domain and peripheral/perinuclear membrane pools; such observations do not make the intact canonical protein a freely soluble cytosolic factor or establish an independent core function.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0035621 ER to Golgi ceramide transport
IDA
PMID:34688657
Intellectual-disability-associated mutations in the ceramide...
ACCEPT
Summary: VAPA participates in ceramide trafficking and sphingomyelin production through lipid-transfer-protein recruitment.
Reason: The VAPAโ€“OSBP perturbation study PMID:12023275 links ER ceramide retention to reduced Golgi export and sphingomyelin synthesis. VAPA is a membrane-contact adaptor rather than the lipid carrier or sphingomyelin synthase. This supports participation in the annotated process without assigning intrinsic lipid-transfer chemistry. The cited CERT-mutant study observes VAP-A-positive puncta; the interpretation is supported jointly with the direct VAPA perturbation evidence.
Supporting Evidence:
PMID:12023275
A fluorescent ceramide analogue also accumulated in these ER inclusions, and export to the Golgi was partially inhibited
GO:0035627 ceramide transport
IMP
PMID:12023275
Vesicle-associated membrane protein-associated protein-A (VA...
ACCEPT
Summary: VAPA participates in ceramide trafficking and sphingomyelin production through lipid-transfer-protein recruitment.
Reason: The VAPAโ€“OSBP perturbation study PMID:12023275 links ER ceramide retention to reduced Golgi export and sphingomyelin synthesis. VAPA is a membrane-contact adaptor rather than the lipid carrier or sphingomyelin synthase. This supports participation in the annotated process without assigning intrinsic lipid-transfer chemistry.
Supporting Evidence:
PMID:12023275
A fluorescent ceramide analogue also accumulated in these ER inclusions, and export to the Golgi was partially inhibited
GO:0042632 cholesterol homeostasis
IDA
PMID:19564404
Cholesterol sensor ORP1L contacts the ER protein VAP to cont...
ACCEPT
Summary: VAPA contributes to lipid transfer and homeostasis through membrane-contact organization.
Reason: VAPA anchors FFAT-containing lipid-transfer proteins such as OSBP/STARD3 and thereby participates mechanistically in lipid movement. The transported lipid is handled by the partner, not an intrinsic VAPA carrier pocket. Protein-membrane adaptor activity and this biological-process participation are compatible; the annotation does not require VAPA to catalyze lipid synthesis.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0042803 protein homodimerization activity
IDA
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
KEEP AS NON CORE
Summary: VAPA oligomerization supports assembly but is not the main functional description.
Reason: VAPA forms homo- and VAPB heterodimers. Retain the interaction property while prioritizing FFAT recognition and membrane adaptor activity as the core molecular mechanism.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
Homodimer; disulfide-linked
file:human/VAPA/VAPA-uniprot.txt
Heterodimer with VAPB
GO:0043123 positive regulation of canonical NF-kappaB signal transduction
HMP
PMID:12761501
Large-scale identification and characterization of human gen...
UNDECIDED
Summary: The high-throughput NF-kappaB phenotype requires mechanistic assessment.
Reason: A screen phenotype alone does not establish direct participation in canonical NF-kappaB activation. The relevant gene-specific assay and relationship to the ER-adaptor role have not been resolved, so this row remains undecided.
GO:0043495 protein-membrane adaptor activity
IBA
GO_REF:0000033
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0043495 protein-membrane adaptor activity
IDA
PMID:19564404
Cholesterol sensor ORP1L contacts the ER protein VAP to cont...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0043495 protein-membrane adaptor activity
IDA
PMID:32234213
Calcium-stimulated disassembly of focal adhesions mediated b...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0043495 protein-membrane adaptor activity
IDA
PMID:34688657
Intellectual-disability-associated mutations in the ceramide...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0043495 protein-membrane adaptor activity
IDA
PMID:39106189
The ORP9-ORP11 dimer promotes sphingomyelin synthesis.
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0043495 protein-membrane adaptor activity
IDA
PMID:41856286
Glycolipid transfer protein modulates vesicular trafficking ...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0044828 host-mediated suppression of viral genome replication
IDA
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0044828 host-mediated suppression of viral genome replication
IEA
GO_REF:0000117
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0044829 host-mediated activation of viral genome replication
IDA
PMID:19515777
Human VAP-C negatively regulates hepatitis C virus propagati...
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0044829 host-mediated activation of viral genome replication
IEA
GO_REF:0000117
UNDECIDED
Summary: The direction and viral-system specificity require the complete cited infection study.
Reason: VAPA interacts with viral replication machinery, but both activation and suppression annotations occur with the same PMID. A generic virus interaction cannot resolve directionality, host/virus context or whether the measured step is genome replication versus release. The full experiment is needed; neither opposite term is automatically removed.
GO:0045296 cadherin binding
HDA
PMID:25468996
E-cadherin interactome complexity and robustness resolved by...
KEEP AS NON CORE
Summary: Retain the proteomic cadherin-binding observation as non-core.
Reason: The HDA source provides a curated association with cadherin complexes. This is compatible with junctional/adhesion contexts but does not establish a dedicated cadherin-binding core mechanism.
GO:0046982 protein heterodimerization activity
IPI
PMID:16227268
Human VAP-B is involved in hepatitis C virus replication thr...
KEEP AS NON CORE
Summary: VAPA oligomerization supports assembly but is not the main functional description.
Reason: VAPA forms homo- and VAPB heterodimers. Retain the interaction property while prioritizing FFAT recognition and membrane adaptor activity as the core molecular mechanism.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
Homodimer; disulfide-linked
file:human/VAPA/VAPA-uniprot.txt
Heterodimer with VAPB
GO:0046982 protein heterodimerization activity
IPI
PMID:9920726
Molecular cloning and characterization of mammalian homologu...
KEEP AS NON CORE
Summary: VAPA oligomerization supports assembly but is not the main functional description.
Reason: VAPA forms homo- and VAPB heterodimers. Retain the interaction property while prioritizing FFAT recognition and membrane adaptor activity as the core molecular mechanism.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
Homodimer; disulfide-linked
file:human/VAPA/VAPA-uniprot.txt
Heterodimer with VAPB
GO:0048471 perinuclear region of cytoplasm
IDA
PMID:16895911
Efficient trafficking of ceramide from the endoplasmic retic...
KEEP AS NON CORE
Summary: Retain the ancillary localization without replacing the principal ER-membrane topology.
Reason: The curated source reports this location or pathway-associated pool. VAPA has a cytosol-facing ER domain and peripheral/perinuclear membrane pools; such observations do not make the intact canonical protein a freely soluble cytosolic factor or establish an independent core function.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0051893 regulation of focal adhesion assembly
IDA
PMID:32234213
Calcium-stimulated disassembly of focal adhesions mediated b...
KEEP AS NON CORE
Summary: Focal-adhesion regulation is a context-specific consequence of VAPA-mediated contacts.
Reason: OSBPL3/VAPA-dependent signaling and membrane recruitment connect VAPA to adhesion turnover. This role is supported, but remains a specialized cellular consequence of the membrane-adaptor function.
Supporting Evidence:
file:human/VAPA/VAPA-uniprot.txt
The OSBPL3-VAPA complex CC stimulates RRAS signaling
GO:0061025 membrane fusion
TAS
PMID:9657962
Identification of a human homologue of the vesicle-associate...
UNDECIDED
Summary: SNARE association does not by itself establish membrane fusion activity or participation.
Reason: VAPA was identified through SNARE-associated interactions, but its established tethering contacts do not fuse membranes. The complete early study must be inspected to decide whether a distinct fusion-process contribution is supported; contact-site tethering alone is insufficient.
GO:0070971 endoplasmic reticulum exit site
IDA NOT
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0070972 protein localization to endoplasmic reticulum
IMP
PMID:19289470
Promotion of neurite extension by protrudin requires its int...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0090114 COPII-coated vesicle budding
IEA
GO_REF:0000117
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0090114 COPII-coated vesicle budding
IMP
PMID:18713837
FFAT rescues VAPA-mediated inhibition of ER-to-Golgi transpo...
ACCEPT
Summary: VAPA partner recruitment contributes to ER organization and membrane traffic.
Reason: VAPA perturbation alters ER cargo segregation and membrane traffic, while FFAT-mediated interactions connect the ER to trafficking intermediates. The annotation captures the adaptor contribution rather than direct vesicle-coat or motor catalysis.
Supporting Evidence:
PMID:18713837
Overexpression of the wild-type A isoform (VAPA) but not the B isoform (VAPB), inhibited ER-to-Golgi transport of membrane proteins.
GO:0098554 cytoplasmic side of endoplasmic reticulum membrane
IDA
PMID:34688657
Intellectual-disability-associated mutations in the ceramide...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0140284 endoplasmic reticulum-endosome membrane contact site
IDA
PMID:41741634
STARD3 regulates lysosome positioning and contacts via a GSK...
ACCEPT
Summary: ER membrane anchoring and contact-site residence are integral to VAPA function.
Reason: The C-terminal membrane anchor places the MSP domain in the cytosol, where FFAT-bearing partners form membrane contacts. Structural, biochemical and cellular studies establish this topology. An ER-endosome contact annotation describes the tethering assembly rather than VAPA moving wholly onto the endosome.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
GO:0160258 endoplasmic reticulum-trans-Golgi network membrane contact site
IDA
PMID:34688657
Intellectual-disability-associated mutations in the ceramide...
ACCEPT
Summary: The ERโ€“Golgi contact role is established, while Golgi-side residence needs topological care.
Reason: OSBP binds VAPA at the ER and Golgi phosphoinositides through its PH domain. A contact-site localization is mechanistically sound; a broad Golgi-membrane observation is retained as non-core without claiming that the canonical VAPA membrane anchor is inserted into Golgi rather than ER.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0160258 endoplasmic reticulum-trans-Golgi network membrane contact site
IDA
PMID:39106189
The ORP9-ORP11 dimer promotes sphingomyelin synthesis.
ACCEPT
Summary: The ERโ€“Golgi contact role is established, while Golgi-side residence needs topological care.
Reason: OSBP binds VAPA at the ER and Golgi phosphoinositides through its PH domain. A contact-site localization is mechanistically sound; a broad Golgi-membrane observation is retained as non-core without claiming that the canonical VAPA membrane anchor is inserted into Golgi rather than ER.
Supporting Evidence:
PMID:24209621
a FFAT motif that interacts with the ER protein VAP-A, and a lipid transfer domain.
GO:0170016 endoplasmic reticulum-endosome tether activity
IDA
PMID:33124732
FFAT motif phosphorylation controls formation and lipid tran...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract
GO:0170016 endoplasmic reticulum-endosome tether activity
IDA
PMID:41741634
STARD3 regulates lysosome positioning and contacts via a GSK...
ACCEPT
Summary: VAPA anchors partner proteins and tethers the ER to opposing membranes.
Reason: Direct FFAT recognition and reconstituted/cellular contact-site experiments support protein-membrane adaptor and ER-endosome tether activity. VAPA supplies the ER anchor; associated lipid-transfer proteins provide cargo transfer.
Supporting Evidence:
PMID:33124732
VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
PMID:33124732
The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract

Core Functions

Tail-anchored ER adaptor that recognizes FFAT-bearing proteins to organize lipid-transfer and trafficking membrane contacts.

Supporting Evidence:
  • PMID:33124732
    VAPโ€A, VAPโ€B, and MOSPD2 are anchored in the ER membrane by a carboxylโ€terminal transmembrane domain with their MSP domain projecting into the cytosol.
  • PMID:33124732
    The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract

Specific recognition of conventional and phosphorylated FFAT motifs by the MSP domain.

Molecular Function:
FFAT motif binding
Supporting Evidence:
  • PMID:33124732
    The FFAT of ORP1 efficiently pulled down VAPโ€A and VAPโ€B from the whole cell protein extract

References

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Suggested Questions for Experts

Q: GO:0160214 endoplasmic reticulum-plasma membrane adaptor activity is defined as bringing the plasma membrane and ER membrane together "via membrane lipid binding". At VAPA-dependent ER-PM contacts the plasma-membrane lipid binding is performed by the FFAT partner (for example the ORP3 PH domain binding PI(4,5)P2), while VAPA contributes the ER-anchored FFAT receptor, a role already captured by GO:0043495 protein-membrane adaptor activity. PomBase nevertheless annotates the fission yeast VAP orthologs scs2 and scs22 to GO:0160214 (IDA/IMP/EXP), and human VAPB carries GO:0160214 both as a UniProt ISS annotation and as the molecular-function node of a production GO-CAM (gomodel:68fac5ed00002250, PITPNM1 at ER-PM contacts). In contrast, the production GO-CAM gomodel:682fbcd000003765, curated from PMID:32234213 (the ORP3 ER-PM contact paper), types VAPA as GO:0043495 protein-membrane adaptor activity occurring in the ER membrane, with the ER-PM contact site placed on the partner nodes. Should GO:0160214 cover ER-anchored FFAT receptors whose plasma-membrane contact is made by a partner protein, or only molecules that themselves bind plasma-membrane lipids (E-Syts, tricalbins, GRAMD2A)? VAPA is not annotated to GO:0160214 in this review pending that clarification.

Suggested experts: Casanova JE

Deep Research

Falcon

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๐Ÿ“š Additional Documentation

Notes

(VAPA-notes.md)

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