Regulatory effects of the mitochondrial energetic status on mitochondrial p66Shc
p66Shc promotes apoptosis and controls the intracellular redox balance. A fraction of p66Shc exists within mitochondria, where it oxidizes cytochrome c to form hydrogen peroxide, which in turn induces mitochondrial permeability and apoptosis. However, cells tolerate p66Shc expression and accumulate...
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Published in | Biological chemistry Vol. 387; no. 10/11; pp. 1405 - 1410 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
Walter de Gruyter
01.10.2006
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Subjects | |
Online Access | Get full text |
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Summary: | p66Shc promotes apoptosis and controls the intracellular redox balance. A fraction of p66Shc exists within mitochondria, where it oxidizes cytochrome c to form hydrogen peroxide, which in turn induces mitochondrial permeability and apoptosis. However, cells tolerate p66Shc expression and accumulate oxidative damage under normal conditions, implying that the p66Shc functions must be tightly regulated. Here we review available knowledge on the regulation of p66Shc transcription, protein stabilization and post-translational modifications. In addition, we report novel investigations into the role of the mitochondrial import machinery on p66Shc activation, which highlight the energetic status of mitochondria as a crucial determinant of p66Shc function. |
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Bibliography: | ArticleID:bchm.387.10-11.1405 istex:442774AC86B96567724FCD3DDD7C2ACE19CAA155 ark:/67375/QT4-VXQXTHXQ-0 bc.2006.176.pdf ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1431-6730 1437-4315 |
DOI: | 10.1515/BC.2006.176 |