首页> 外文期刊>The Korean Journal of Physiology & Pharmacology >Sorting Nexin 17 Interacts Directly with Kinesin Superfamily KIF1Bβ Protein
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Sorting Nexin 17 Interacts Directly with Kinesin Superfamily KIF1Bβ Protein

机译:分类Nexin 17直接与驱动蛋白超家族KIF1Bβ蛋白相互作用。

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KIF1Bβ is a member of the Kinesin superfamily proteins (KIFs), which are microtubule-dependent molecular motors that are involved in various intracellular organellar transport processes. KIF1Bβ is not restricted to neuronal systems, however, is widely expressed in other tissues, even though the function of KIF1Bβ is still unclear. To elucidate the KIF1Bβ-binding proteins in non-neuronal cells, we used the yeast two-hybrid system, and found a specific interaction of KIF1Bβ and the sorting nexin (SNX) 17. The C-terminal region of SNX17 is required for the binding with KIF1Bβ. SNX17 protein bound to the specific region of KIF1Bβ (813-916. aa), but not to other kinesin family members. In addition, this specific interaction was also observed in the Glutathione S-transferase pull-down assay. An antibody to SNX17 specifically co-immunoprecipitated KIF1Bβ associated with SNX17 from mouse brain extracts. These results suggest that SNX17 might be involved in the KIF1Bβ-mediated transport as a KIF1Bβ adaptor protein.
机译:KIF1Bβ是驱动蛋白超家族蛋白(KIFs)的成员,该蛋白是微管依赖性分子马达,参与​​各种细胞内细胞器运输过程。尽管KIF1Bβ的功能仍不清楚,但KIF1Bβ不仅限于神经系统,在其他组织中也广泛表达。为了阐明非神经元细胞中的KIF1Bβ结合蛋白,我们使用了酵母双杂交系统,并发现了KIF1Bβ与分选神经毒素(SNX)17的特异性相互作用。SNX17的C端区域是结合所必需的与KIF1Bβ。 SNX17蛋白与KIF1Bβ(813-916。aa)的特定区域结合,但不与其他驱动蛋白家族成员结合。另外,在谷胱甘肽S-转移酶下拉试验中也观察到了这种特异性相互作用。 SNX17的抗体可特异性免疫共沉淀小鼠大脑提取物中与SNX17相关的KIF1Bβ。这些结果表明,SNX17可能作为KIF1Bβ衔接蛋白参与KIF1Bβ介导的转运。

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