×

Network disruptions

We have been experiencing disruptions on our local network which has affected the stability of these web pages. We have been working with IT support team to get this fixed as a matter of urgency and apologise for any inconvenience.

CATH Classification

Domain Context

CATH Clusters

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

Enzyme Information

1.1.1.86
Ketol-acid reductoisomerase (NADP(+)).
based on mapping to UniProt Q65XK0
(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)

Q65XK0
ILV5_ORYSJ
Oryza sativa Japonica Group
Ketol-acid reductoisomerase, chloroplastic

PDB Structure

PDB 3FR8
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Conformational changes in a plant ketol-acid reductoisomerase upon Mg(2+) and NADPH binding as revealed by two crystal structures
Leung, E.W., Guddat, L.W.
J.Mol.Biol.
CATH-Gene3D is a Global Biodata Core Resource Learn more...