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PMID |
Sentence |
1 |
17548353
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Although Munc18c function is known to involve binding to the t-SNARE Syntaxin 4, a paucity of Munc18c-binding proteins has restricted elucidation of the mechanism by which it facilitates these exocytosis events.
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2 |
17548353
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Supporting the notion of Munc18c binding with Syntaxin 4 and Doc2beta in mutually exclusive complexes, in vitro competition with Syntaxin 4 effectively displaced Munc18c from binding to Doc2beta.
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3 |
17548353
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Taken together, these data support a model wherein Munc18c transiently switches from association with Syntaxin 4 to association with Doc2beta at the plasma membrane to facilitate exocytosis.
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4 |
17848561
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Munc18c is known to be a key regulator of accessibility of the target membrane (t-SNARE) protein syntaxin 4 to participate in SNARE core complex assembly, although a paucity of Munc18c-binding factors has precluded discovery of its precise functions.
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5 |
19188424
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Protein interaction studies used subcellular fractions and detergent lysates prepared from MIN6 beta-cells to determine the mechanistic role of Munc18c in Syntaxin 4 activation and docking/fusion of vesicle-associated membrane protein (VAMP)2-containing insulin granules.
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6 |
19188424
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Munc18c depletion ablated the glucose-stimulated VAMP2-Syntaxin 4 association as well as Syntaxin 4 activation, correlating with the deficit in insulin release.
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7 |
15734838
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The disruption of Munc18c binding to syntaxin 4 impairs insulin-stimulated GLUT4 vesicle translocation in 3T3L1 adipocytes.
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8 |
16638745
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Syntaxin 4 binding to Munc18c decreased as Munc18c phosphorylation levels increased in pervanadate-treated cells, suggesting that phosphorylation dissociates the Munc18c-Syntaxin 4 complex.
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9 |
16638745
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Mutagenesis of one residue in this region, Y219F, significantly increased the affinity of Munc18c for Syntaxin 4, whereas mutation of three other candidate sites was without effect.
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