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FLASH GENE
Symbol SYT7 contributors: mct/npt/pgu - updated : 28-03-2018
HGNC name synaptotagmin VII
HGNC id 11514
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • an intravesicular N terminal domain
  • a single transmembrane (TM) region
  • two protein kinase C-homologous repeats (Ca2+ binding domains C2), C2A and C2B domains that exhibit Ca2+-dependent phospholipid binding, and both contribute to exocytosis
  • a conserved WHXL motif in the C terminus
  • mono polymer homomer , heteromer , complex
    HOMOLOGY
    interspecies homolog to murine Syt7
    ortholog to rattus Syt7
    Homologene
    FAMILY
  • synaptotagmin family
  • CATEGORY transport carrier
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic,granule
    intracellular,cytoplasm,cytosolic,vesicle
    intracellular,nucleus
    text
  • membrane of synaptic vesicles
  • is abundantly distributed in neuropil of all examined anatomical areas of the brain, most prominently in axons
  • basic FUNCTION
  • calcium sensor for transmitter release at the central synapse, involved in exocytosis and endocytosis
  • serves as a Ca(2+) sensor in the release of neurotransmitters and hormone
  • may be involved in the control of synaptic neuropeptide release or some other form of Ca2+-induced exocytosis
  • major Ca2+ sensor for exocytosis in chromaffin cells, which, together with synaptotagmin-1, mediates almost all of the Ca2+ triggering of exocytosis in these cells
  • functioning by binding to Ca2+ and, thus in this sense, is a Ca2+ sensor
  • acting to trigger exocytosis in a manner similar to synaptotagmin-1, by binding to phospholipids and SNARE proteins
  • plays an important role in bone remodeling and homeostasis by modulating secretory pathways functionally important in osteoclasts and osteoblasts
  • principal Ca2+ sensor for Ca2+ -induced glucagon exocytosis in pancreas
  • Ca(2+) sensor of dense core vesicles fusion machinery (
  • with SYTL5, are positive regulators of chemotaxis
  • Ca(2+) sensor that regulates lysosome exocytosis and plasma membrane repair
  • controls fusion pore dynamics during exocytosis via a push-and-pull mechanism in which Ca2+ binding to both C2 domains promotes fusion pore opening, but the C2B domain is selectively essential for continuous expansion of an otherwise unstable fusion pore
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS nervous system , exocytosis transport , endocytosis transport
    PATHWAY
    metabolism
    signaling
    a component
  • multifunctional intrinsic membrane protein of synaptic vesicles of neurons and chromaffin granules
  • INTERACTION
    DNA
    RNA
    small molecule metal binding,
  • Ca2+
  • protein
  • role for the SYT7-phosphatidylserine interaction in stabilizing open fusion pores (
  • palmitoylation-dependent association with the tetraspanin CD63 is the mechanism by which SYT7 is targeted to lysosomes
  • SYT7 interacts with Synaptotagmin-binding, cytoplasmic RNA-interacting protein (SYNCRIP)
  • possible functional connection between SYT7 and SYNCRIP proteins in Purkinje neurons
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
    Variant & Polymorphism
    Candidate gene candidate Ca2+ sensor for exocytosis that is at least partly localized to synapses
    Marker
    Therapy target
    ANIMAL & CELL MODELS