Synonyms:33 kDa VAMP associated protein, hVAP 33, VAMP A, VAMP associated protein A, VAP 33, VAP A, VAP33, VAPA Background:Binds to OSBPL3, which mediates recruitment of VAPA to plasma membrane sites(PubMed:25447204). The ORP3-VAPA complex stimulates RRAS signaling which in turn attenuates integrin beta-1(ITGB1) activation at the cell surface(PubMed:25447204). With OSBPL3, may regulate ER morphology(PubMed:16143324). May play a role in vesicle trafficking(PubMed:11511104, PubMed:19289470).