U.S. flag

An official website of the United States government

GTR Home > Genes

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

Gene ID: 3419, updated on 11-Apr-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
See labs

Genomic context

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

Links

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.