NADPH-dependent generation of a cytosolic dithiol which activates hepatic iodothyronine 5'-deiodinase. Demonstration by alkylation with iodoacetamide.

Abstract

We have assessed a previously proposed mechanism mediating 5'-deiodinase activation involving enzymic reduction of disulphides to thiols in non-glutathione cytosolic components of Mr approx. 13,000 (Fraction B) catalysed by NADPH in the presence of other cytosolic components of Mr greater than 60,000 (Fraction A). The extent of Fraction B reduction under… (More)

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Cited By

Crystal structure of mammalian selenocysteine-dependent iodothyronine deiodinase suggests a peroxiredoxin-like catalytic mechanism.

Ulrich Schweizer, Christine Schlicker, Doreen Braun, Josef Köhrle, Clemens Steegborn
Proceedings of the National Academy of Sciences…
2014

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