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首页> 外文期刊>Biological chemistry >Regulatory effects of the mitochondrial energetic status on mitochondrial p66(Shc)
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Regulatory effects of the mitochondrial energetic status on mitochondrial p66(Shc)

机译:线粒体能量状态对线粒体p66(Shc)的调节作用

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摘要

p66(Shc) promotes apoptosis and controls the intracellular redox balance. A fraction of p66(Shc) exists within mitochondria, where it oxidizes cytochrome c to form hydrogen peroxide, which in turn induces mitochondrial permeability and apoptosis. However, cells tolerate p66(Shc) expression and accumulate oxidative damage under normal conditions, implying that the p66(Shc) functions must be tightly regulated. Here we review available knowledge on the regulation of p66(Shc) transcription, protein stabilization and post-translational modifications. In addition, we report novel investigations into the role of the mitochondrial import machinery on p66(Shc) activation, which highlight the energetic status of mitochondria as a crucial determinant of p66(Shc) function.
机译:p66(Shc)促进细胞凋亡并控制细胞内氧化还原平衡。 p66(Shc)的一部分存在于线粒体内,在其中氧化细胞色素c形成过氧化氢,从而诱导线粒体通透性和凋亡。但是,在正常条件下,细胞可以耐受p66(Shc)的表达并积累氧化损伤,这意味着必须严格调节p66(Shc)的功能。在这里,我们综述了有关p66(Shc)转录调控,蛋白质稳定和翻译后修饰的知识。此外,我们报告了有关线粒体导入机制对p66(Shc)激活的作用的新颖研究,突显了线粒体作为p66(Shc)功能的关键决定因素的能量状态。

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