Article
Interaction with the Redox Cofactor MYW and Functional Role of a Mobile Arginine in Eukaryotic Catalase-Peroxidase.
Biochemistry - 28 Jun 2016
Gasselhuber Bernhard, Graf Michael M H, Jakopitsch Christa, Zamocky Marcel, Nicolussi Andrea, Furtmüller Paul G, Oostenbrink Chris, Carpena Xavi, Obinger Christian
Abstract excerpt
Catalase-peroxidases (KatGs) are unique bifunctional heme peroxidases with an additional posttranslationally formed redox-active Met-Tyr-Trp cofactor that is essential for catalase activity. On the basis of studies of bacterial KatGs, controversial mechanisms of hydrogen peroxide oxidation were proposed. The recent discovery of eukaryotic KatGs with differing pH optima of catalase activity now allows us to...
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