This gene encodes a member of the soluble NSF attachment protein (SNAP) family. SNAP proteins play a critical role in the docking and fusion of vesicles to target membranes as part of the 20S NSF-SNAP-SNARE complex. The encoded protein plays a role in the completion of membrane fusion by mediating the interaction of N-ethylmaleimide-sensitive factor (NSF) with the vesicle-associated and membrane-associated SNAP receptor (SNARE) complex, and stimulating the ATPase activity of NSF. Alternatively spliced transcript variants have been observed for this gene. The 'SNARE hypothesis' is a model explaining the process of docking and fusion of vesicles to their target membranes. Once the 2 classes of SNAREs bind to each other, they form a complex that recruits the general elements of the fusion apparatus, namely NSF (N-ethylmaleimide-sensitive factor) and SNAPs (soluble NSF-attachment proteins), to the site of membrane fusion, thereby forming the 20S fusion complex. Alpha- and gamma-SNAP are found in a wide range of tissues and act synergistically in intra-Golgi transport. The sequence of the predicted 295-amino acid human protein encoded by NAPA shares 37%, 60%, and 67% identity with the sequences of yeast, Drosophila, and squid alpha-SNAP, respectively. Platelets contain some of the same proteins, including NSF, p115/TAP, alpha-SNAP (this protein), gamma-SNAP, and the t-SNAREs syntaxin-2 and syntaxin-4, that are used in many vesicular transport processes in other cell types.
Background References
1. de Paola M. et. al. Pleiotropic effects of alpha-SNAP M105I mutation on oocyte biology: ultrastructural and cellular changes that adversely affect female fertility in mice. Sci Rep. 2019 Nov
2. Datta SP. et. al. Multiple paralogues of α-SNAP in Giardia lamblia exhibit independent subcellular localization and redistribution during encystation and stress. Parasit Vectors. 2018 Oct
N ethylmaleimide sensitive factor attachment protein alpha antibody
N-ethylmaleimide-sensitive factor attachment protein alpha antibody
napA antibody
NSF attachment protein alpha antibody
SNAA_HUMAN antibody
SNAP alpha antibody
SNAP-alpha antibody
SNAPA antibody
Images
Western blot analysis of Alpha SNAP on different lysates with Rabbit anti-Alpha SNAP antibody (ET7110-79) at 1/1,000 dilution.
Lane 1: HeLa cell lysate (20 µg/Lane) Lane 2: HepG2 cell lysate (20 µg/Lane) Lane 3: SH-SY5Y cell lysate (20 µg/Lane) Lane 4: Rat liver tissue lysate (40 µg/Lane) Lane 5: Mouse brain tissue lysate (40 µg/Lane) Lane 6: Rat brain tissue lysate (40 µg/Lane)
Predicted band size: 33 kDa Observed band size: 35 kDa
Exposure time: 3 minutes; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET7110-79) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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