What is the functional significance of the unique location of glutaredoxin 1 (GRx1) in the intermembrane space of mitochondria?
[No authors listed]
摘要
Glutaredoxins (GRx) catalyze reversible protein glutathionylation. They are implicated in sulfhydryl homeostasis and regulation of redox signal transduction, controlling various cellular processes like DNA synthesis, defense against oxidative stress, apoptosis signaling, and DNA-binding of transcription factors. Two isoforms of GRx are well characterized in mammals: GRx1, the "cytosolic" form, and GRx2, the "mitochondrial" form. Here we report documentation of GRx1 in mitochondria, localized exclusively in the intermembrane space and segregated from GRx2, localized exclusively in the mitochondrial matrix. We hypothesize that GRx1 and GRx2 in their unique locations regulate different functions of the mitochondria via reversible S-glutathionylation.
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基因功能
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原始数据
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文献解读
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