CATH Classification

Domain Context

CATH Clusters

Superfamily Isopropylmalate Dehydrogenase
Functional Family Isocitrate dehydrogenase [NAD] subunit alpha, mitochondrial

Enzyme Information

1.1.1.41
Isocitrate dehydrogenase (NAD(+)).
based on mapping to UniProt P50213
Isocitrate + NAD(+) = 2-oxoglutarate + CO(2) + NADH.
-!- Unlike EC 1.1.1.42, oxalosuccinate cannot 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 NADP(+) but much more slowly.

UniProtKB Entries (1)

P50213
IDH3A_HUMAN
Homo sapiens
Isocitrate dehydrogenase [NAD] subunit alpha, mitochondrial

PDB Structure

PDB 5GRF
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Molecular mechanism of the allosteric regulation of the alpha gamma heterodimer of human NAD-dependent isocitrate dehydrogenase.
Ma, T., Peng, Y., Huang, W., Ding, J.
Sci Rep
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