CATH Classification

Domain Context

CATH Clusters

Superfamily Isopropylmalate Dehydrogenase
Functional Family

Enzyme Information

1.1.1.42
Isocitrate dehydrogenase (NADP(+)).
based on mapping to UniProt P39126
Isocitrate + NADP(+) = 2-oxoglutarate + CO(2) + NADPH.
-!- Unlike EC 1.1.1.41, oxalosuccinate can be used as a substrate. -!- In eukaryotes, isocitrate dehydrogenase exists in two forms: an NAD(+)-linked enzyme found only in mitochondria and displaying allosteric properties, and a non-allosteric, NADP(+)-linked enzyme that is found in both mitochondria and cytoplasm. -!- The enzyme from some species can also use NAD(+) but much more slowly.

UniProtKB Entries (1)

P39126
IDH_BACSU
Bacillus subtilis subsp. subtilis str. 168
Isocitrate dehydrogenase [NADP]

PDB Structure

PDB 1HQS
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal structure of Bacillus subtilis isocitrate dehydrogenase at 1.55 A. Insights into the nature of substrate specificity exhibited by Escherichia coli isocitrate dehydrogenase kinase/phosphatase.
Singh, S.K., Matsuno, K., LaPorte, D.C., Banaszak, L.J.
J.Biol.Chem.