LEU3_CORA7
ID LEU3_CORA7 Reviewed; 339 AA.
AC C3PFX5;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-JUN-2009, sequence version 1.
DT 03-AUG-2022, entry version 73.
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=cauri_1136;
OS Corynebacterium aurimucosum (strain ATCC 700975 / DSM 44827 / CIP 107346 /
OS CN-1) (Corynebacterium nigricans).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=548476;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700975 / DSM 44827 / CIP 107346 / CN-1;
RX PubMed=20137072; DOI=10.1186/1471-2164-11-91;
RA Trost E., Gotker S., Schneider J., Schneiker-Bekel S., Szczepanowski R.,
RA Tilker A., Viehoever P., Arnold W., Bekel T., Blom J., Gartemann K.H.,
RA Linke B., Goesmann A., Puhler A., Shukla S.K., Tauch A.;
RT "Complete genome sequence and lifestyle of black-pigmented Corynebacterium
RT aurimucosum ATCC 700975 (formerly C. nigricans CN-1) isolated from a
RT vaginal swab of a woman with spontaneous abortion.";
RL BMC Genomics 11:91-91(2010).
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; CP001601; ACP32729.1; -; Genomic_DNA.
DR RefSeq; WP_010186893.1; NZ_ACLH01000005.1.
DR AlphaFoldDB; C3PFX5; -.
DR SMR; C3PFX5; -.
DR STRING; 548476.cauri_1136; -.
DR EnsemblBacteria; ACP32729; ACP32729; cauri_1136.
DR GeneID; 31923756; -.
DR KEGG; car:cauri_1136; -.
DR eggNOG; COG0473; Bacteria.
DR HOGENOM; CLU_031953_0_1_11; -.
DR OMA; EYDLGAR; -.
DR OrthoDB; 1551125at2; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000002077; 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; Reference proteome.
FT CHAIN 1..339
FT /note="3-isopropylmalate dehydrogenase"
FT /id="PRO_1000149450"
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 339 AA; 35934 MW; 55855A15CF481B8C CRC64;
MKLAVIGGDG IGPEVTAEAL KVLRAVRQDV EVTDYDLGAR RYLRNGELLS DADFASLREH
DAILLGAIGA PGEVPPGVLE RGLLLKMRFA LDHHVNLRPS KLYPTSTSPL ANPGDIDFVV
VREGTEGLYC GNGGTLREGT EHEVASEVSQ NTRFGVERVV RDAFQRAMGR RKHVTLVHKT
NVLVNAGGLW QRTVNEVAQE FPEVTVDYNH IDAATIYMVT DPARYDVIVT DNLFGDILTD
LAGAVTGGIG LAASGNIDAS GANPSMFEPV HGSAPDIAGK GIADPTAAIL SAAMLLRHLG
DEENAVRIEE AVAADVSARG DAQARTTEIG DRIAAALSA
