Kinetic and sequence-structure-function analysis of known LinA variants with different hexachlorocyclohexane isomers
BACKGROUND Here we report specific activities of all seven naturally occurring LinA variants towards three different isomers, α, γ and δ, of a priority persistent pollutant, hexachlorocyclohexane (HCH). Sequence-structure-function differences contributing to the differences in their stereospecificity for α-, γ-, and δ-HCH and enantiospecificity for (+)- and (-)-α -HCH are also discussed. METHODOLOGY/PRINCIPAL FINDINGS Enzyme kinetic studies were performed with purified LinA variants. Models of...[Show more]
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