9b9p
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Crystal structure of Staphylococcus aureus ketol-acid reductoisomerase in complex with Mg2+, and JK-5-114
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Structural highlights
FunctionA0A4T9XKD7_STAAU Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol-acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3-dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3-hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate.[HAMAP-Rule:MF_00435] Contents | ||||||||||||||||||||
This page was last modified 17:03, 9 July 2025.