Crystal structure of Staphylococcus aureus Ketol-acid Reductosimerrase with hydroxyoxamate inhibitor 3Crystal structure of Staphylococcus aureus Ketol-acid Reductosimerrase with hydroxyoxamate inhibitor 3

Structural highlights

6c55 is a 2 chain structure with sequence from Staphylococcus aureus RF122. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.09Å
Ligands:, , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ILVC_STAAB 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.

See Also

6c55, resolution 2.09Å

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