Syntaxin-binding protein 5 is a protein that in humans is encoded by the STXBP5gene.123
Syntaxin 1 is a component of the 7S and 20S SNARE complexes which are involved in docking and fusion of synaptic vesicles with the presynaptic plasma membrane. This gene encodes a syntaxin 1 binding protein. In rat, a similar protein dissociates syntaxin 1 from the Munc18/n-Sec1/rbSec1 complex to form a 10S complex, an intermediate which can be converted to the 7S SNARE complex. Thus this protein is thought to be involved in neurotransmitter release by stimulating SNARE complex formation. Alternatively spliced variants have been identified, but their biological validity has not been determined.3
^ abFujita Y, Shirataki H, Sakisaka T, Asakura T, Ohya T, Kotani H, Yokoyama S, Nishioka H, Matsuura Y, Mizoguchi A, Scheller RH, Takai Y (Jun 1998). "Tomosyn: a syntaxin-1-binding protein that forms a novel complex in the neurotransmitter release process". Neuron20 (5): 905–15. doi:10.1016/S0896-6273(00)80472-9. PMID9620695.
^Katoh M, Katoh M (Feb 2004). "Identification and characterization of human LLGL4 gene and mouse Llgl4 gene in silico". Int J Oncol24 (3): 737–42. PMID14767561.
^ abWidberg, Charlotte H; Bryant Nia J, Girotti Milena, Rea Shane, James David E (Sep 2003). "Tomosyn interacts with the t-SNAREs syntaxin4 and SNAP23 and plays a role in insulin-stimulated GLUT4 translocation". J. Biol. Chem. (United States) 278 (37): 35093–101. doi:10.1074/jbc.M304261200. ISSN0021-9258. PMID12832401.Cite uses deprecated parameters (help)
Widberg CH, Bryant NJ, Girotti M, et al. (2003). "Tomosyn interacts with the t-SNAREs syntaxin4 and SNAP23 and plays a role in insulin-stimulated GLUT4 translocation.". J. Biol. Chem.278 (37): 35093–101. doi:10.1074/jbc.M304261200. PMID12832401.