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Gene information for IDH3G (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID3421
Official gene symbolIDH3G
Full nameisocitrate dehydrogenase 3 (NAD+) gamma
Aliases,H-IDHG,
Gene summaryIsocitrate 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 gamma subunit of one isozyme of NAD(+)-dependent isocitrate dehydrogenase. This gene is a candidate gene for periventricular heterotopia. Several alternatively spliced transcript variants of this gene have been described, but only some of their full length natures have been determined. [provided by RefSeq]
LocationChromosome: X   Locus: Xq28
Gene position153059967 - 153051221  Map Viewer
Gene orientationminus
Gene size8747 bp
Gene sequence
OMIM ID300089