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Comparative Study
. 1980 Apr 1;187(1):205-11.
doi: 10.1042/bj1870205.

Bromoperoxidases from Penicillus capitatus, Penicillus lamourouxii and Rhipocephalus phoenix

D G Baden, M D Corbett
Comparative Study

Bromoperoxidases from Penicillus capitatus, Penicillus lamourouxii and Rhipocephalus phoenix

D G Baden et al. Biochem J. .

Abstract

The isolation and purification of bromoperoxidases from three marine subtropical green algae is described. In the presence of KBr and H2O2, each halide-specific enzyme catalyses the bromination of monochlorodimedone (2-chloro-5,5-dimethylcyclohexane-1,3-dione) to bromochlorodimedone (2-bromo-2-chloro-5,5-dimethylcyclohexane-1,3-dione). The enzymes also catalyse the oxidation of pyrogallol, o-phenylenediamine and I- to I3-. Preliminary characterization of these enzymes reveals acidic pH optima, high thermal stability, sensitivity to higher H2O2 concentrations, and apparent molecular weights ranging from 48000 to 60000.

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