D53 is a novel endosomal SNARE-binding protein that enhances interaction of syntaxin 1 with the synaptobrevin 2 complex in vitro

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D53 is a novel endosomal SNARE-binding protein that enhances interaction of syntaxin 1 with the synaptobrevin 2 complex in vitro.

Synaptobrevin 2 (Sb2), syntaxin1 (Stx1), and synaptosomal-associated protein of 25 kDa (SNAP-25) are the main components of the soluble N -ethylmaleimide-sensitive fusion protein attachment protein receptor (SNARE) complex involved in fusion of synaptic vesicles with the presynaptic plasma membrane. We report the characterization of D53, a novel SNARE-binding protein preferentially expressed in...

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Syntaxin-1 is a component of the synaptic vesicle docking and/or membrane fusion soluble N-ethylmaleimide-sensitive factor attachment receptor (SNARE) complex (7S and 20S complexes) in nerve terminals. Syntaxin-1 also forms a heterodimer with Munc18/n-Sec1/rbSec1 in a complex that is distinct from the 7S and 20S complexes. In this report, we identify a novel syntaxin-1-binding protein, tomosyn,...

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The endosomal SNARE protein syntaxin-8 interacts with the acid-sensitive potassium channel TASK-1. The functional relevance of this interaction was studied by heterologous expression of these proteins (and mutants thereof) in Xenopus oocytes and in mammalian cell lines. Coexpression of syntaxin-8 caused a fourfold reduction in TASK-1 current, a corresponding reduction in the expression of TASK-...

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ژورنال

عنوان ژورنال: Biochemical Journal

سال: 2003

ISSN: 0264-6021,1470-8728

DOI: 10.1042/bj20021309