...
首页> 外文期刊>Nature cell biology >Life without the mitochondrial calcium uniporter
【24h】

Life without the mitochondrial calcium uniporter

机译:没有线粒体钙单向转运蛋白的生活

获取原文
获取原文并翻译 | 示例
           

摘要

Calcium enters mitochondria through a dedicated channel referred to as the mitochondrial calcium uniporter (MCU), whose molecular identity has long remained elusive. Since the discovery of the gene encoding the MCU protein two years ago, researchers have awaited the generation of a mouse lacking the MCU. These mice are fully viable and show defects limited to performance of high-energy-demanding exercises. Strikingly, no protection against necrosis is observed following ischaemia-reperfusion in the heart.Fluctuation in intracellular calcium has far-reaching consequences for cell signalling, metabolism and cell fate, and must be tightly controlled to prevent potentially toxic repercussions. Following an increase in the concentration of cytosolic calcium, significant amounts are sequestered in the mitochondrial matrix, and so mitochondria are thought to play a major role in calcium homeostasis. Since the 1970s, it has been proposed that calcium enters mitochondria through a dedicated channel referred to as the mitochondrial calcium uniporter (MCU).
机译:钙通过称为线粒体钙单向转运蛋白(MCU)的专用通道进入线粒体,其分子身份长期以来难以捉摸。自两年前发现编码MCU蛋白的基因以来,研究人员一直在等待缺少MCU的小鼠的产生。这些小鼠完全有生存力,并且表现出局限在进行高能量运动的缺陷。令人惊讶的是,心脏局部缺血再灌注后未见针对坏死的保护作用。细胞内钙的波动对细胞信号传导,新陈代谢和细胞命运具有深远的影响,必须严密控制以防止潜在的毒性反应。随着胞质钙浓度的增加,线粒体基质中螯合了大量钙,因此线粒体被认为在钙稳态中起主要作用。自1970年代以来,有人提出钙通过称为线粒体钙单向转运蛋白(MCU)的专用通道进入线粒体。

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