FUNCTION: Plays an essential role in docking and fusion steps of regulated exocytosis (By similarity). At the presynaptic level, RPH3A is recruited by RAB3A to the synaptic vesicle membrane in a GTP-dependent manner where it modulates synaptic vesicle trafficking and calcium-triggered neurotransmitt...
FUNCTION: Plays an essential role in docking and fusion steps of regulated exocytosis (By similarity). At the presynaptic level, RPH3A is recruited by RAB3A to the synaptic vesicle membrane in a GTP-dependent manner where it modulates synaptic vesicle trafficking and calcium-triggered neurotransmitter release (By similarity). In the post-synaptic compartment, forms a ternary complex with GRIN2A and DLG4 and regulates NMDA receptor stability. Plays also a role in the exocytosis of arginine vasopressin hormone (By similarity). {ECO:0000250|UniProtKB:P47709}.
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GO - Biological processes (BP):
intracellular protein transport [GO:0006886]; spontaneous neurotransmitter secretion [GO:0061669]...
intracellular protein transport [GO:0006886]; spontaneous neurotransmitter secretion [GO:0061669]
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GO - Molecular function (MF):
calcium-dependent phospholipid binding [GO:0005544]; calcium ion binding [GO:0005509]; inositol 1,4,5 trisphosphate binding [GO:0070679]; phosphate ion binding [GO:0042301]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; phosphatidylinositol phosphate binding [GO:1901981]; protein-conta...
calcium-dependent phospholipid binding [GO:0005544]; calcium ion binding [GO:0005509]; inositol 1,4,5 trisphosphate binding [GO:0070679]; phosphate ion binding [GO:0042301]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; phosphatidylinositol phosphate binding [GO:1901981]; protein-containing complex binding [GO:0044877]; selenium binding [GO:0008430]; small GTPase binding [GO:0031267]; zinc ion binding [GO:0008270]
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GO - Cellular component (CC):
cytosol [GO:0005829]; dendritic spine [GO:0043197]; extrinsic component of membrane [GO:0019898]; neuron projection [GO:0043005]; postsynaptic membrane [GO:0045211]; protein-containing complex [GO:0032991]; secretory granule [GO:0030141]; synapse [GO:0045202]; synaptic vesicle [GO:0008021]; synaptic...
cytosol [GO:0005829]; dendritic spine [GO:0043197]; extrinsic component of membrane [GO:0019898]; neuron projection [GO:0043005]; postsynaptic membrane [GO:0045211]; protein-containing complex [GO:0032991]; secretory granule [GO:0030141]; synapse [GO:0045202]; synaptic vesicle [GO:0008021]; synaptic vesicle membrane [GO:0030672]
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