ID A0A2K5J9T9_COLAP Unreviewed; 365 AA.
AC A0A2K5J9T9;
DT 28-MAR-2018, integrated into UniProtKB/TrEMBL.
DT 28-MAR-2018, sequence version 1.
DT 24-JAN-2024, entry version 24.
DE RecName: Full=Isocitrate dehydrogenase [NAD] subunit, mitochondrial {ECO:0000256|RuleBase:RU361266};
OS Colobus angolensis palliatus (Peters' Angolan colobus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Colobinae; Colobus.
OX NCBI_TaxID=336983 {ECO:0000313|Ensembl:ENSCANP00000025542.1, ECO:0000313|Proteomes:UP000233080};
RN [1] {ECO:0000313|Ensembl:ENSCANP00000025542.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- FUNCTION: Catalytic subunit of the enzyme which catalyzes the
CC decarboxylation of isocitrate (ICT) into alpha-ketoglutarate. The
CC heterodimer composed of the alpha (IDH3A) and beta (IDH3B) subunits and
CC the heterodimer composed of the alpha (IDH3A) and gamma (IDH3G)
CC subunits, have considerable basal activity but the full activity of the
CC heterotetramer (containing two subunits of IDH3A, one of IDH3B and one
CC of IDH3G) requires the assembly and cooperative function of both
CC heterodimers. {ECO:0000256|ARBA:ARBA00037577}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-threo-isocitrate + NAD(+) = 2-oxoglutarate + CO2 + NADH;
CC Xref=Rhea:RHEA:23632, ChEBI:CHEBI:15562, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:16810, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.1.1.41;
CC Evidence={ECO:0000256|ARBA:ARBA00037023};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:23633;
CC Evidence={ECO:0000256|ARBA:ARBA00037023};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- SUBUNIT: Heterooligomer of subunits alpha (IDH3A), beta (IDH3B), and
CC gamma (IDH3G) in the apparent ratio of 2:1:1. The heterodimer
CC containing one IDH3A and one IDH3B subunit and the heterodimer
CC containing one IDH3A and one IDH3G subunit assemble into a
CC heterotetramer (which contains two subunits of IDH3A, one of IDH3B and
CC one of IDH3G) and further into the heterooctamer.
CC {ECO:0000256|ARBA:ARBA00011525}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|ARBA:ARBA00004173,
CC ECO:0000256|RuleBase:RU361266}.
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. {ECO:0000256|ARBA:ARBA00007769,
CC ECO:0000256|RuleBase:RU361266}.
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DR AlphaFoldDB; A0A2K5J9T9; -.
DR STRING; 336983.ENSCANP00000025542; -.
DR Ensembl; ENSCANT00000048547.1; ENSCANP00000025542.1; ENSCANG00000036050.1.
DR Proteomes; UP000233080; Unplaced.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0051287; F:NAD binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016616; F:oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor; IEA:InterPro.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR004434; Isocitrate_DH_NAD.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR NCBIfam; TIGR00175; mito_nad_idh; 1.
DR PANTHER; PTHR11835; DECARBOXYLATING DEHYDROGENASES-ISOCITRATE, ISOPROPYLMALATE, TARTRATE; 1.
DR PANTHER; PTHR11835:SF34; ISOCITRATE DEHYDROGENASE [NAD] SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR Pfam; PF00180; Iso_dh; 1.
DR SMART; SM01329; Iso_dh; 1.
DR SUPFAM; SSF53659; Isocitrate/Isopropylmalate dehydrogenase-like; 1.
DR PROSITE; PS00470; IDH_IMDH; 1.
PE 3: Inferred from homology;
KW Magnesium {ECO:0000256|ARBA:ARBA00022842};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Mitochondrion {ECO:0000256|RuleBase:RU361266};
KW Reference proteome {ECO:0000313|Proteomes:UP000233080};
KW Transit peptide {ECO:0000256|ARBA:ARBA00022946,
KW ECO:0000256|RuleBase:RU361266};
KW Tricarboxylic acid cycle {ECO:0000256|ARBA:ARBA00022532,
KW ECO:0000256|RuleBase:RU361266}.
FT DOMAIN 32..357
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
SQ SEQUENCE 365 AA; 39737 MW; 5246C8A6E41B9F5C CRC64;
FQHFWVSKVS RLLGAFHNPK QVTRGFTGGV QTVTLIPGDG IGPEISAAVM KIFDAAKAPI
QWEERNVTAI QGPGGKWMIP SEAKESMDKN KMGLKGPLKT PIAAGHPSMN LLLRKTFDLY
ANVRPCVSIE GYKTPYTDVN IVTIRENTEG EYSGIEHVIV DGVVQSIKLI TEGASKRIAE
FAFEYARNNH RSNVTAVHKA NIMRMSDGLF LQKCREVAEN CKDIKFNEMY LDTVCLNMVQ
DPSQFDVLVM PNLYGDILSD LCAGLIGGLG VTPSGNIGAN GVAIFESVHG TAPDIAGKDM
ANPTALLLSA VMMLRHMGLF DHAARIEAAC FATIKDGKSL TKDLGGNAKC SDFTEEICRR
VKDLD
//
