...
首页> 外文期刊>Neuron >Endophilin is required for synaptic vesicle endocytosis by localizing synaptojanin.
【24h】

Endophilin is required for synaptic vesicle endocytosis by localizing synaptojanin.

机译:内啡肽是突触小泡内吞作用所必需的,它可以通过定位突触素。

获取原文
获取原文并翻译 | 示例
           

摘要

Endophilin is a membrane-associated protein required for endocytosis of synaptic vesicles. Two models have been proposed for endophilin: that it alters lipid composition in order to shape membranes during endocytosis, or that it binds the polyphosphoinositide phosphatase synaptojanin and recruits this phosphatase to membranes. In this study, we demonstrate that the unc-57 gene encodes the Caenorhabditis elegans ortholog of endophilin A. We demonstrate that endophilin is required in C. elegans for synaptic vesicle recycling. Furthermore, the defects observed in endophilin mutants closely resemble those observed in synaptojanin mutants. The electrophysiological phenotype of endophilin and synaptojanin double mutants are virtually identical to the single mutants, demonstrating that endophilin and synaptojanin function in the same pathway. Finally, endophilin is required to stabilize expression of synaptojanin at the synapse. These data suggest that endophilin is an adaptor protein required to localize andstabilize synaptojanin at membranes during synaptic vesicle recycling.
机译:内啡肽是突触小泡内吞所需的一种膜相关蛋白。已经提出了两种用于内啡肽的模型:其改变脂质组成以在胞吞过程中使膜成形,或者其结合多磷酸肌醇磷酸酶突触结合蛋白并将该磷酸酶募集到膜上。在这项研究中,我们证明unc-57基因编码线粒体秀丽隐杆线虫的内吞素A直系同源物。我们证明了线虫中需要内毒素为突触小泡循环。此外,在endophilin突变体中观察到的缺陷与在synaptojanin突变体中观察到的缺陷非常相似。内啡肽和突触结合蛋白双重突变体的电生理表型实际上与单个突变体相同,表明内啡肽和突触结合蛋白在同一途径中起作用。最后,需要内啡肽来稳定突触中突触素的表达。这些数据表明,内啡肽是突触小泡再循环期间在膜上定位和稳定突触结合素所需的衔接蛋白。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号