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IDH3A isocitrate dehydrogenase (NAD(+)) 3 catalytic subunit alpha

Gene ID: 3419, updated on 3-Nov-2024
Gene type: protein coding
Also known as: RP90

Summary

Isocitrate dehydrogenases catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate. These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. NAD(+)-dependent isocitrate dehydrogenases catalyze the allosterically regulated rate-limiting step of the tricarboxylic acid cycle. Each isozyme is a heterotetramer that is composed of two alpha subunits, one beta subunit, and one gamma subunit. The protein encoded by this gene is the alpha subunit of one isozyme of NAD(+)-dependent isocitrate dehydrogenase. [provided by RefSeq, Jul 2008]

Associated conditions

See all available tests in GTR for this gene

DescriptionTests
Retinitis pigmentosa 90
MedGen: C5436588OMIM: 619007GeneReviews: Not available
not available

Genomic context

Location:
15q25.1
Sequence:
Chromosome: 15; NC_000015.10 (78149362..78171945)
Total number of exons:
12

Links

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