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Overview

Uniprot IDA0A8W4F896
Protein NameIsocitrate dehydrogenase [NAD] subunit, mitochondrial
Gene NameIDH3A
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
156 LITEGASKRIAEFAF
202 REVAENCKDIKFNEM
315 TACFATIKDGKSLTK
322 KDGKSLTKDLGGNAK
37 MKIFDAAKAPIQWEE

Function

Catalytic subunit of the enzyme which catalyzes the decarboxylation of isocitrate (ICT) into alpha-ketoglutarate. The heterodimer composed of the alpha (IDH3A) and beta (IDH3B) subunits and the heterodimer composed of the alpha (IDH3A) and gamma (IDH3G) subunits, have considerable basal activity but the full activity of the heterotetramer (containing two subunits of IDH3A, one of IDH3B and one of IDH3G) requires the assembly and cooperative function of both heterodimers

Protein Sequence

10 MAGPAWISKV 20 KTVTLIPGDG 30 IGPEISAAVM 40 KIFDAAKAPI 50 QWEERNVTAI 60 QGPGGKWMIP 70 PEAKESMDKN 80 KMGLKGPLKT 90 PIAAGHPSMN 100 LLLRKTFDLY 110 ANVRPCVSIE 120 GYKTPYTDVN 130 IVTIRENTEG 140 EYSGIEHVIV 150 DGVVQSIKLI 160 TEGASKRIAE 170 FAFEYARNNH 180 RSNVTAVHKA 190 NIMRMSDGLF 200 LQKCREVAEN 210 CKDIKFNEMY 220 LDTVCLNMVQ 230 DPSQFDVLVM 240 PNLYGDILSD 250 LCAGLIGGLG 260 VTPSGNIGAN 270 GVAIFESVHG 280 TAPDIAGKDM 290 ANPTALLLSA 300 VMMLRHMGLF 310 DHAAKIETAC 320 FATIKDGKSL 330 TKDLGGNAKC 340 SDFTEEICRR VKDLD

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005739 mitochondrion
Molecular Function GO:0004449 isocitrate dehydrogenase (NAD+) activity
Molecular Function GO:0000287 magnesium ion binding
Molecular Function GO:0051287 NAD binding
Biological Process GO:0006099 tricarboxylic acid cycle

Reference

[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.