Reference: Coates L, et al. (2005) Structure of Chlorobium vibrioforme 5-aminolaevulinic acid dehydratase complexed with a diacid inhibitor. Acta Crystallogr D Biol Crystallogr 61(Pt 12):1594-8

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Abstract


The structure of Chlorobium vibrioforme 5-aminolaevulinic acid dehydratase (ALAD) complexed with the irreversible inhibitor 4,7-dioxosebacic acid has been solved. The inhibitor binds by forming Schiff-base linkages with lysines 200 and 253 at the active site. The structure reported here provides a definition of the interactions made by both of the substrate molecules (A-side and P-side substrates) with the C. vibrioforme ALAD and is compared and contrasted with structures of the same inhibitor bound to Escherichia coli and yeast ALAD. The structure suggests why 4,7-dioxosebacic acid is a better inhibitor of the zinc-dependent ALADs than of the zinc-independent ALADs.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Coates L, Beaven G, Erskine PT, Beale SI, Wood SP, Shoolingin-Jordan PM, Cooper JB
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