Javascript is not enabled on this browser. This site will not work properly without Javascript.
PhosphoSitePlus Homepage Cell Signaling Technology
Home | Login
About PhosphoSiteUsing PhosphoSiteprivacy & cookiesCuration ProcessContact
logos LINCs Logo Mt Sinai Logo NIH Logo NCI Logo
Search / Browse Functions
Protein Page:

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. Note: This description may include information from UniProtKB.
Protein type: Calcium-binding; Membrane protein, integral; Vesicle
Chromosomal Location of Human Ortholog: 12q21.2
Cellular Component: clathrin coated vesicle membrane; neuron projection; plasma membrane; synaptic vesicle; synaptic vesicle membrane
Molecular Function: calcium ion binding; calcium-dependent phospholipid binding; clathrin binding; low-density lipoprotein receptor binding; phosphatidylinositol binding; phosphatidylinositol-4,5-bisphosphate binding; protein binding; SNARE binding; syntaxin-1 binding
Biological Process: calcium ion-dependent exocytosis of neurotransmitter; detection of calcium ion; glutamate secretion; neurotransmitter secretion; positive regulation of synaptic transmission; protein homooligomerization; regulation of calcium ion-dependent exocytosis; regulation of exocytosis; regulation of synaptic transmission, glutamatergic; synaptic transmission; synaptic vesicle endocytosis; vesicle fusion
Reference #:  P21579 (UniProtKB)
Alt. Names/Synonyms: DKFZp781D2042; p65; SVP65; synaptotagmin 1; Synaptotagmin I; Synaptotagmin-1; SYT; SYT1; SytI
Gene Symbols: SYT1
Molecular weight: 47,573 Da
Basal Isoelectric point: 8.26  Predict pI for various phosphorylation states
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
Select Structure to View Below


Protein Structure Not Found.
Download PyMol Script
Download ChimeraX Script

STRING  |  cBioPortal  |  Wikipedia  |  Reactome  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Scansite  |  Pfam  |  RCSB PDB  |  Phospho3D  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein