Synaptosomal-associated protein 25 - P60880 (SNP25_HUMAN)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

t-SNARE involved in the molecular regulation of neurotransmitter release. May play an important role in the synaptic function of specific neuronal systems. Associates with proteins involved in vesicle docking and membrane fusion. Regulates plasma membrane recycling through its interaction with CENPF. Modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1 in pancreatic beta cells. UniProt
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Subunit Structure
Part of the SNARE core complex containing SNAP25, VAMP2 and STX1A; this complex binds CPLX1 (PubMed:11832227). Found in a complex containing SYT1, SV2B and syntaxin-1 (By similarity). Found in a ternary complex with STX1A and VAMP8 (By similarity). Interacts with HSC70 and with SYT9, forming a complex with DNAJC5 (By similarity). The interaction with SYT9 is inhibited in presence of calcium (By similarity). Isoform 1 and isoform 2 interact with BLOC1S6 (PubMed:19546860). Interacts with CENPF (By similarity). Interacts with EQTN (By similarity). Interacts with HGS (By similarity). Interacts with KCNB1 (via N-terminus); reduces the voltage-dependent potassium channel KCNB1 activity in pancreatic beta cells (By similarity). Interacts with OTOF (By similarity). Interacts with RIMS1 (By similarity). Interacts with SNAPIN (By similarity). Interacts with STXBP6 (By similarity). Interacts with TRIM9 (By similarity). Interacts with ZDHHC13 (via ANK repeats) (By similarity). Interacts with ZDHHC17 (via ANK repeats) (PubMed:28882895, PubMed:28757145). Associates with the BLOC-1 complex (PubMed:19546860). Interacts with PLCL1 (via C2 domain) (By similarity). Interacts with PRRT2; this interaction may impair the formation of the SNARE complex (PubMed:22832103, PubMed:25915028). Interacts with alpha-synuclein/SNCA (PubMed:20798282). Interacts with PRPH2 (By similarity). Interacts with ROM1 (By similarity). Interacts with STX3 (By similarity). UniProt
  • Isoforms: 2 , currently showing only the 'canonical' sequence.
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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