CATH Classification

Domain Context

CATH Clusters

Superfamily NAD(P)-binding Rossmann-like Domain
Functional Family Ketol-acid reductoisomerase (NADP(+))

Enzyme Information

1.1.1.86
Ketol-acid reductoisomerase (NADP(+)).
based on mapping to UniProt C8WR67
(1) (2R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (2S)-2-hydroxy-2- methyl-3-oxobutanoate + NADPH. (2) (2R,3R)-2,3-dihydroxy-3-methylpentanoate + NADP(+) = (S)-2-hydroxy-2- ethyl-3-oxobutanoate + NADPH.
-!- The enzyme, found in many bacteria and archaea, is specific for NADPH (cf. EC 1.1.1.382 and EC 1.1.1.383). -!- Formerly EC 1.1.1.89.

UniProtKB Entries (1)

C8WR67
ILVC_ALIAD
Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446
Ketol-acid reductoisomerase (NADP(+))

PDB Structure

PDB 4TSK
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Uncovering rare NADH-preferring ketol-acid reductoisomerases.
Brinkmann-Chen, S., Cahn, J.K., Arnold, F.H.
Metab. Eng.