syntaxin binding protein 5 (tomosyn-1, lethal[2] giant larvae protein homolog 3, STXBP5, LLGL3)
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Function
- Ca+2-dependent exocytosis
- neurotransmitter release
- inhibits membrane fusion between transport vesicles & plasma membrane
- modulates assembly of trans-SNARE complexes between transport vesicles & plasma membrane
- inhibits translocation of GLUT4 from intracellular vesicles to plasma membrane
- competes with STXBP1 for STX1 binding
- interacts with STX1A, STX1B
- component of STX1/STXBP5/SNAP25/SYT1/STXBP5 complex
- component o STXBP5/STX4A/SNAP23STXBP5 complex
Compartment
- cytoplasm, peripheral membrane protein, vesicular membranes, plasma membrane, synapses, synaptic vesicles