Nitroreductase NfnB

UniProtKB accession:  A0R6D0

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UniProtKB description:  Confers resistance to antitubercular drugs benzothiazinone (BTZ) and dinitrobenzamide (DNB). Inactivates BTZ and DNB by reducing an essential nitro group of these compounds to amino group or to hydroxyl amine, respectively, using NADH or NADPH as source of reducing equivalents; two electrons are transferred (PubMed:22069462, PubMed:20624223). Able to reduce the nitro group of bicyclic nitroimidazole PA-824, but not of quinone menadione, nitrofurazone, methyl-4-nitrobenzoate, 4-nitrobenzene methyl sulfonate or 4-nitroacetophenone (PubMed:20624223).