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We report the biochemical characterization of a novel haloalkane dehalogenase, DatA, isolated from the plant pathogen Agrobacterium tumefaciens C58. DatA possesses a peculiar pair of halide-stabilizing residues, Asn-Tyr, which have not been reported to play this role in other known haloalkane dehalogenases. DatA has a number of other unique characteristics,(More)
Two haloalkane dehalogenases, LinBUT and LinBMI, each with 296 amino acid residues, exhibit only seven amino acid residue differences between them, but LinBMI’s catalytic performance towards β-hexachlorocyclohexane (β-HCH) is considerably higher than LinBUT’s. To elucidate the molecular basis governing this difference, intermediate mutants between LinBUT(More)
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