1.7.1.B2 2,4,6-trinitrotoluene + NADH + H+ - 1.7.1.B2 2,4,6-trinitrotoluene + NADPH + H+ - 1.7.1.B2 2,4-dinitrotoluene + NADPH + H+ - 1.7.1.B2 2,4-dinitrotoluene + NADPH + H+ highest activity 1.7.1.B2 2,6-dinitrotoluene + NADPH + H+ - 1.7.1.B2 2,6-dinitrotoluene + NADPH + H+ highest activity 1.7.1.B2 additional information Escherichia coli nitroreductase NfsB can reduce nitrochloromethylbenzindolines, i.e. nitro-CBIs, in an oxygen-independent fashion, generating highly cytotoxic metabolites that alkylate the N3 of adenine in the minor groove of DNA 1.7.1.B2 additional information Pseudomonas aeruginosa nitroreductase NfsB can reduce nitrochloromethylbenzindolines, i.e. nitro-CBIs, in an oxygen-independent fashion, generating highly cytotoxic metabolites that alkylate the N3 of adenine in the minor groove of DNA