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 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.
IDH3G; isocitrate dehydrogenase 3 (NAD+) gamma; isocitrate dehydrogenase [NAD] subunit gamma, mitochondrial; mitochondrial; H IDHG; H-IDHG; IDH gamma; IDH3G_HUMAN; Isocitrate dehydrogenase [NAD] subunit gamma; Isocitric dehydrogenase; Isocitric dehydrogenase subunit gamma; NAD (H) specific isocitrate dehydrogenase gamma subunit; NAD(+) specific ICDH; NAD(+)-specific ICDH; NAD(+)-specific ICDH subunit gamma; NAD+ specific ICDH; OTTHUMP00000025984; OTTHUMP00000025985; OTTHUMP00000025987; OTTHUMP00000025988; OTTHUMP00000214764; IDH-gamma; NAD+-specific ICDH; NAD (H)-specific isocitrate dehydrogenase gamma subunit; isocitrate dehydrogenase, NAD(+)-specific, mitochondrial, gamma subunit; im:7054683; wu:fb37a05; zgc:112190; zgc:165532