Enzymatic dehalogenation of chlorinated nitroaromatic compounds.

4-Chlorobenzoate dehalogenase from Pseudomonas sp. strain CBS3 converted 4-chloro-3,5-dinitrobenzoate to 3,5-dinitro-4-hydroxybenzoate and 1-chloro-2,4-dinitrobenzene to 2,4-dinitrophenol. The activities were 0.13 mU/mg of protein for 4-chloro-3,5-dinitrobenzoate and 0.16 mU/mg of protein for 1-chloro-2,4-dinitrobenzene compared with 0.5 mU/mg of protein for 4-chlorobenzoate.