CATH Classification

Domain Context

CATH Clusters

Superfamily Isopropylmalate Dehydrogenase
Functional Family Isocitrate dehydrogenase [NADP]

Enzyme Information

1.1.1.42
Isocitrate dehydrogenase (NADP(+)).
based on mapping to UniProt P21954
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)

P21954
IDHP_YEAST
Saccharomyces cerevisiae S288C
Isocitrate dehydrogenase [NADP], mitochondrial

PDB Structure

PDB 2QFW
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural studies of Saccharomyces cerevesiae mitochondrial NADP-dependent isocitrate dehydrogenase in different enzymatic states reveal substantial conformational changes during the catalytic reaction
Peng, Y.J., Zhong, C., Huang, W., Ding, J.P.
Protein Sci.
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