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Updated: Jul 9, 2026

Imaging of mtHyPer7, a Ratiometric Biosensor for Mitochondrial Peroxide, in Living Yeast Cells
Published on: June 2, 2023
[Hybrid Mn-peroxidases from basidiomycetes: a review]
Abstract:
The Mn-peroxidase from the fungus Panus tigrinus 8/18 is a hybrid enzyme. It catalyzes both Mn2+-dependent and Mn2+-independent oxidation of organic substrates. The spectral properties of intermediates and the pathway of the catalytic cycle are typical of hybrid Mn-peroxidases. The enzyme catalyzes the "oxidase" reaction (NADH oxidation) without peroxide and with the presence of Mn2+, which takes part in hydrogen peroxide production via Mn3+ and preserves the enzyme from inactivation. With the presence of organic mediators, the hybrid Mn-peroxidase oxidizes nonphenolic compounds: aromatic alcohols and a nonphenolic lignin model compound. The degree of conversion of 2,4,6-trichlorophenol is higher with the presence of l-hydroxybenzotriazole.
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