Primary Identifier | MGI:99667 | Organism | mouse, laboratory |
Chromosome | 10 | NCBI Gene Number | 20979 |
Mgi Type | protein coding gene |
description | FUNCTION: Automated description from the Alliance of Genome Resources (Release 8.0.0) Enables several functions, including calcium ion sensor activity; calcium-dependent phospholipid binding activity; and syntaxin-1 binding activity. Involved in modulation of chemical synaptic transmission; regulation of dopamine secretion; and synaptic vesicle exocytosis. Acts upstream of or within calcium ion-regulated exocytosis of neurotransmitter; spontaneous neurotransmitter secretion; and synchronous neurotransmitter secretion. Located in several cellular components, including Golgi apparatus; presynaptic membrane; and secretory vesicle. Is active in glutamatergic synapse. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; peripheral nervous system ganglion; and sensory organ. Orthologous to human SYT1 (synaptotagmin 1). PHENOTYPE: Homozygous null mice do not suckle, show impaired synaptic transmission and Ca2+-evoked neurotransmitter release, and die by 48 hrs of life. Knock-in mice bearing a missense mutation show enhanced synaptic depression while those carrying a point mutationshow reduced synaptic release probability. [provided by MGI curators] |