...
首页> 外文期刊>Cell metabolism >Nogo-B receptor stabilizes Niemann-Pick type C2 protein and regulates intracellular cholesterol trafficking.
【24h】

Nogo-B receptor stabilizes Niemann-Pick type C2 protein and regulates intracellular cholesterol trafficking.

机译:Nogo-B受体稳定Niemann-Pick C2型蛋白并调节细胞内胆固醇的运输。

获取原文
获取原文并翻译 | 示例
           

摘要

The Nogo-B receptor (NgBR) is a recently identified receptor for the N terminus of reticulon 4B/Nogo-B. Other than its role in binding Nogo-B, little is known about the biology of NgBR. To elucidate a basic cellular role for NgBR, we performed a yeast two-hybrid screen for interacting proteins, using the C-terminal domain as bait, and identified Niemann-Pick type C2 protein (NPC2) as an NgBR-interacting protein. NPC2 protein levels are increased in the presence of NgBR, and NgBR enhances NPC2 protein stability. NgBR localizes primarily to the endoplasmic reticulum (ER) and regulates the stability of nascent NPC2. RNAi-mediated disruption of NgBR or genetic deficiency in NgBR lead to a decrease in NPC2 levels, increased intracellular cholesterol accumulation, and a loss of sterol sensing, all hallmarks of an NPC2 mutation. These data identify NgBR as an NPC2-interacting protein and provide evidence of a role for NgBR in intracellular cholesterol trafficking.
机译:Nogo-B受体(NgBR)是最近确定的网状蛋白4B / Nogo-B N末端的受体。除了其在结合Nogo-B中的作用外,对NgBR的生物学知之甚少。为了阐明NgBR的基本细胞作用,我们使用C末端域作为诱饵,对相互作用的蛋白进行了酵母双杂交筛选,并确定了Niemann-Pick型C2蛋白(NPC2)为与NgBR相互作用的蛋白。 NgBR的存在会增加NPC2的蛋白质水平,而NgBR​​会增强NPC2的蛋白质稳定性。 NgBR主要定位于内质网(ER),并调节新生NPC2的稳定性。 RNAi介导的NgBR破坏或NgBR中的遗传缺陷会导致NPC2水平降低,细胞内胆固醇积累增加以及固醇感测丧失,这是NPC2突变的所有标志。这些数据将NgBR鉴定为NPC2相互作用蛋白,并提供NgBR在细胞内胆固醇运输中的作用的证据。

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