LEU3_CORGB
ID LEU3_CORGB Reviewed; 340 AA.
AC A4QDP9;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-MAY-2007, sequence version 1.
DT 03-AUG-2022, entry version 86.
DE RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01035};
DE EC=1.1.1.85 {ECO:0000255|HAMAP-Rule:MF_01035};
DE AltName: Full=3-IPM-DH {ECO:0000255|HAMAP-Rule:MF_01035};
DE AltName: Full=Beta-IPM dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01035};
DE Short=IMDH {ECO:0000255|HAMAP-Rule:MF_01035};
GN Name=leuB {ECO:0000255|HAMAP-Rule:MF_01035}; OrderedLocusNames=cgR_1364;
OS Corynebacterium glutamicum (strain R).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=340322;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=R;
RX PubMed=17379713; DOI=10.1099/mic.0.2006/003657-0;
RA Yukawa H., Omumasaba C.A., Nonaka H., Kos P., Okai N., Suzuki N., Suda M.,
RA Tsuge Y., Watanabe J., Ikeda Y., Vertes A.A., Inui M.;
RT "Comparative analysis of the Corynebacterium glutamicum group and complete
RT genome sequence of strain R.";
RL Microbiology 153:1042-1058(2007).
CC -!- FUNCTION: Catalyzes the oxidation of 3-carboxy-2-hydroxy-4-
CC methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2-
CC oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate.
CC {ECO:0000255|HAMAP-Rule:MF_01035}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3S)-3-isopropylmalate + NAD(+) = 4-methyl-2-oxopentanoate
CC + CO2 + NADH; Xref=Rhea:RHEA:32271, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:17865, ChEBI:CHEBI:35121, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945; EC=1.1.1.85; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01035};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01035};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01035};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01035};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 3/4. {ECO:0000255|HAMAP-
CC Rule:MF_01035}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01035}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01035}.
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. LeuB type 2 subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_01035}.
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DR EMBL; AP009044; BAF54346.1; -; Genomic_DNA.
DR RefSeq; WP_003854077.1; NC_009342.1.
DR AlphaFoldDB; A4QDP9; -.
DR SMR; A4QDP9; -.
DR EnsemblBacteria; BAF54346; BAF54346; cgR_1364.
DR GeneID; 58310695; -.
DR KEGG; cgt:cgR_1364; -.
DR HOGENOM; CLU_031953_0_1_11; -.
DR OMA; EYDLGAR; -.
DR PhylomeDB; A4QDP9; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000006698; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003862; F:3-isopropylmalate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR HAMAP; MF_01035; LeuB_type2; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR InterPro; IPR023698; LeuB_actb.
DR Pfam; PF00180; Iso_dh; 1.
DR SMART; SM01329; Iso_dh; 1.
DR PROSITE; PS00470; IDH_IMDH; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Branched-chain amino acid biosynthesis; Cytoplasm;
KW Leucine biosynthesis; Magnesium; Manganese; Metal-binding; NAD;
KW Oxidoreductase.
FT CHAIN 1..340
FT /note="3-isopropylmalate dehydrogenase"
FT /id="PRO_1000063870"
FT BINDING 88
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 98
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 122
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 212
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 212
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 236
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 240
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT BINDING 272..284
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT SITE 129
FT /note="Important for catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT SITE 179
FT /note="Important for catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
SQ SEQUENCE 340 AA; 36133 MW; 195C82FFE8387C5D CRC64;
MKLAVIGGDG IGPEVTAEAL KVLNAVRDDI ETTDYDLGAR RYLKNGELLT DEDLASLREH
DAILLGAIGA PGSVPPGILE RGLLLKMRFA LDHHVNLRPS KLYDGVESPL RNPGKIDFVV
VREGTEGAYT GNGGAIRVGT AHEIANETSV NTRYGAERVI RYAFELAQSR RKKLTLVHKT
NVLVHGGGLW QRTVDEVAKE YPEVAVDYNH IDAATIYLIT DPSRFDVIVT DNLFGDILTD
EAGAVSGGIG LAASGNIDAT GTNPSMFEPV HGSAPDIAGQ GIADPTAAIL SAAMLLRHLG
DEDNAVRIET AIAADVAGRD NSQPISTTEV GDRIVKALQS
