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0VP33B_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
DescriptionVacuolar protein sorting 33b (hvps33b).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
Domain Architecture (Details)
InterPro domains assigned to SynO:
Sec1-like molecules have been implicated in a variety of eukaryotic vesicle transport processes including neurotransmitter release by exocytosis . They regulate vesicle transport by binding to a t-SNARE from the syntaxin family. This process is thought to prevent SNARE complex formation. protein complex required for membrane fusion. Whereas Sec1 molecules are essential for neurotransmitter release and other secretory events.heir interaction with syntaxin molecules seems to represent a negative regulatory step in secretion .
  IPR001619:Sec1-like protein
SequencesProtein: VP33B_HUMAN (617 aa)
mRNA: NM_018668
Local Annotation
Synapse Ontology
endosome of the presynaptic compartment. A cellular structure that is involved in the transport of proteins in the neuron after the proteins are endocytosed from the outside to the inside of the cell.
sdb:0088 endosome  (Evidence:keywords,domains)
Various stages of the synaptic vesicle cycle, including attachment, prefusion, triggering, recycling and reloading of the vesicles with transmitter.
sdb:0098 synaptic vesicle cycling  (Evidence:keywords,domains)
priming for exocytosis prepares the calcium-dependent release and may involve partial fusion process. The vesicles are primed and become responsive to calcium.
sdb:0120 priming  (Evidence:keywords,domains)
attachment of the vesicle filled with transmitters involves a specific interaction between the vesicle membrane and the presynaptic active zone.
sdb:0148 docking  (Evidence:keywords,domains)
KO assignmentNot mapped to KEGG
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 127 residues, 89342908-89343288Exon2: 41 residues, 89343910-89344027Exon3: 27 residues, 89344133-89344209Exon4: 36 residues, 89344723-89344825Exon5: 26 residues, 89345622-89345696Exon6: 46 residues, 89346283-89346416Exon7: 17 residues, 89347318-89347365Exon8: 20 residues, 89349110-89349165Exon9: 23 residues, 89349288-89349353Exon10: 27 residues, 89349613-89349688Exon11: 32 residues, 89349927-89350018Exon12: 31 residues, 89350206-89350293Exon13: 26 residues, 89350605-89350679Exon14: 28 residues, 89350885-89350963Exon15: 34 residues, 89351183-89351280Exon16: 37 residues, 89351702-89351807Exon17: 33 residues, 89352103-89352198Exon18: 17 residues, 89354034-89354080Exon19: 24 residues, 89358037-89358105Exon20: 18 residues, 89358617-89358667Exon21: 22 residues, 89361196-89361258Exon22: 29 residues, 89362038-89362119Exon23: 145 residues, 89366387-89366817Exon24: 2 residues, -Jump to VP33B_HUMAN  
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Loci Cluster (Details)Loci: 2907 89444548-89639514 ~-195K 13044(+)Loci: 4197 89342908-89366817 ~-24K 13043(VPS33B)(-)Link out to UCSC