Crystallographic analysis of new psychrophilic haloalkane dehalogenases: DpcA fromPsychrobacter cryohalolentisK5 and DmxA fromMarinobactersp. ELB17
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چکیده
منابع مشابه
Phylogenetic analysis of haloalkane dehalogenases.
Haloalkane dehalogenases (HLDs) are enzymes that catalyze the cleavage of carbon-halogen bonds by a hydrolytic mechanism. Although comparative biochemical analyses have been published, no classification system has been proposed for HLDs, to date, that reconciles their phylogenetic and functional relationships. In the study presented here, we have analyzed all sequences and structures of genuine...
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Haloalkane dehalogenases (EC 3.8.1.5, HLDs) are α/β-hydrolases which act to cleave carbon-halogen bonds. Due to their unique catalytic mechanism, broad substrate specificity and high robustness, the members of this enzyme family have been employed in several practical applications: (i) biocatalytic preparation of optically pure building-blocks for organic synthesis; (ii) recycling of by-product...
متن کاملEvolving haloalkane dehalogenases.
Mechanistic insight into the biochemistry of carbon-halogen bond cleavage is rapidly growing because of recent structural, biochemical and computational studies that have provided further insight into how haloalkane dehalogenases achieve their impressive catalytic activity. An occluded water-free active-site cavity together with strong hydrogen bond donating groups reduce the transition state e...
متن کاملSubstrate specificity of haloalkane dehalogenases.
An enzyme's substrate specificity is one of its most important characteristics. The quantitative comparison of broad-specificity enzymes requires the selection of a homogenous set of substrates for experimental testing, determination of substrate-specificity data and analysis using multivariate statistics. We describe a systematic analysis of the substrate specificities of nine wild-type and fo...
متن کاملHaloalkane dehalogenases: structure of a Rhodococcus enzyme.
The hydrolytic haloalkane dehalogenases are promising bioremediation and biocatalytic agents. Two general classes of dehalogenases have been reported from Xanthobacter and Rhodococcus. While these enzymes share 30% amino acid sequence identity, they have significantly different substrate specificities and halide-binding properties. We report the 1.5 A resolution crystal structure of the Rhodoco...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section F Structural Biology and Crystallization Communications
سال: 2013
ISSN: 1744-3091
DOI: 10.1107/s1744309113012979