SYT1 Antibody – Rabbit Polyclonal

The synaptotagmins are integral membrane proteins of synaptic vesicles thought to serve as Ca(2+) sensors in the process of vesicular trafficking and exocytosis. Calcium binding to synaptotagmin-1 participates in triggering neurotransmitter release at the synapse (Fernandez-Chacon et al., 2001 [PubMed 11242035]).[supplied by OMIM, Jul 2010]

SYT1: an integral membrane protein of synaptic vesicles thought to serve as a Ca(2+) sensor in the process of vesicular trafficking and exocytosis. Calcium binding to synaptotagmin I participates in triggering neurotransmitter release at the synapse. Binds acidic phospholipids with a specificity that requires the presence of both an acidic head group and a diacyl backbone. A Ca(2+)-dependent interaction between synaptotagmin and putative receptors for activated protein kinase C has also been reported. It can bind to at least three additional proteins in a Ca(2+)-independent manner; these are neurexins, syntaxin and AP2.

Protein type: Calcium-binding; Membrane protein, integral; Vesicle

Chromosomal Location of Human Ortholog: 12cen-q21

Cellular Component: SNARE complex; presynaptic membrane; synaptic vesicle; neuron projection; synaptic vesicle membrane; plasma membrane; integral to membrane; excitatory synapse; cell junction

Molecular Function: protein C-terminus binding; identical protein binding; clathrin binding; calcium-dependent phospholipid binding; transporter activity; calcium ion binding; calcium-dependent protein binding; calmodulin binding; protein binding; phosphatidylinositol-4,5-bisphosphate binding; SNARE binding; low-density lipoprotein receptor binding; phosphatidylserine binding; syntaxin-1 binding; phosphatidylinositol binding

Biological Process: regulation of exocytosis; synaptic transmission; positive regulation of calcium ion-dependent exocytosis; synaptic vesicle exocytosis; regulation of synaptic transmission, glutamatergic; vesicle docking; glutamate secretion; neurotransmitter secretion; positive regulation of vesicle fusion; pathogenesis; detection of calcium ion; protein homooligomerization; positive regulation of synaptic transmission