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Overview of peroxiredoxins in oxidant defense and redox regulation.


ABSTRACT: Peroxiredoxins are important hydroperoxide detoxification enzymes, yet have only come to the fore in recent years relative to the other major players in peroxide detoxification, heme-containing catalases and peroxidases and glutathione peroxidases. These cysteine-dependent peroxidases exhibit high reactivity with hydrogen peroxide, organic hydroperoxides, and peroxynitrite and play major roles not only in peroxide defense, but also in regulating peroxide-mediated cell signaling. This overview focuses on important peroxiredoxin features that have emerged over the past several decades with an emphasis on catalytic mechanism, regulation, and biological function.

SUBMITTER: Poole LB 

PROVIDER: S-EPMC3156475 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Overview of peroxiredoxins in oxidant defense and redox regulation.

Poole Leslie B LB   Hall Andrea A   Nelson Kimberly J KJ  

Current protocols in toxicology 20110801


Peroxiredoxins are important hydroperoxide detoxification enzymes, yet have only come to the fore in recent years relative to the other major players in peroxide detoxification, heme-containing catalases and peroxidases and glutathione peroxidases. These cysteine-dependent peroxidases exhibit high reactivity with hydrogen peroxide, organic hydroperoxides, and peroxynitrite and play major roles not only in peroxide defense, but also in regulating peroxide-mediated cell signaling. This overview fo  ...[more]

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