ID D5XAF3_THEPJ Unreviewed; 359 AA.
AC D5XAF3;
DT 13-JUL-2010, integrated into UniProtKB/TrEMBL.
DT 13-JUL-2010, sequence version 1.
DT 27-MAR-2024, entry version 79.
DE RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01033};
DE EC=1.1.1.85 {ECO:0000256|HAMAP-Rule:MF_01033};
DE AltName: Full=3-IPM-DH {ECO:0000256|HAMAP-Rule:MF_01033};
DE AltName: Full=Beta-IPM dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01033};
DE Short=IMDH {ECO:0000256|HAMAP-Rule:MF_01033};
GN Name=leuB {ECO:0000256|HAMAP-Rule:MF_01033};
GN OrderedLocusNames=TherJR_0366 {ECO:0000313|EMBL:ADG81252.1};
OS Thermincola potens (strain JR).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Thermincolaceae;
OC Thermincola.
OX NCBI_TaxID=635013 {ECO:0000313|EMBL:ADG81252.1, ECO:0000313|Proteomes:UP000002377};
RN [1] {ECO:0000313|EMBL:ADG81252.1, ECO:0000313|Proteomes:UP000002377}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JR {ECO:0000313|EMBL:ADG81252.1,
RC ECO:0000313|Proteomes:UP000002377};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA Pitluck S., Chertkov O., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Hazen T.C., Woyke T.;
RT "Complete sequence of Thermincola sp. JR.";
RL Submitted (MAY-2010) to the EMBL/GenBank/DDBJ databases.
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:0000256|HAMAP-Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
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;
CC Evidence={ECO:0000256|ARBA:ARBA00000624, ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033,
CC ECO:0000256|RuleBase:RU004445};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033,
CC ECO:0000256|RuleBase:RU004445};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 3/4. {ECO:0000256|ARBA:ARBA00004762,
CC ECO:0000256|HAMAP-Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01033}.
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. LeuB type 1 subfamily.
CC {ECO:0000256|ARBA:ARBA00008319, ECO:0000256|HAMAP-Rule:MF_01033}.
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DR EMBL; CP002028; ADG81252.1; -; Genomic_DNA.
DR AlphaFoldDB; D5XAF3; -.
DR STRING; 635013.TherJR_0366; -.
DR KEGG; tjr:TherJR_0366; -.
DR eggNOG; COG0473; Bacteria.
DR HOGENOM; CLU_031953_0_3_9; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000002377; 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 Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR HAMAP; MF_01033; LeuB_type1; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR InterPro; IPR004429; Isopropylmalate_DH.
DR NCBIfam; TIGR00169; leuB; 1.
DR PANTHER; PTHR42979; 3-ISOPROPYLMALATE DEHYDROGENASE; 1.
DR PANTHER; PTHR42979:SF1; 3-ISOPROPYLMALATE DEHYDROGENASE; 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 Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_01033};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01033};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01033};
KW Manganese {ECO:0000256|HAMAP-Rule:MF_01033};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01033};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01033}; Reference proteome {ECO:0000313|Proteomes:UP000002377}.
FT DOMAIN 4..351
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 76..89
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 97
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 107
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 135
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 223
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 223
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 247
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 251
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 280..292
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 142
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 191
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
SQ SEQUENCE 359 AA; 39249 MW; 6D8958F476A34F76 CRC64;
MICKIASLPG DGIGAEIVPE AIKALQAVGR KYGHEFIFTE ALIGGAALDA VGVPLPEETL
RLCRESDAVL LGAIGGPKWD NLPVHLRPEA GSLLPLRKEL GLYANLRPVV LYDALIDAST
LKKEVIQGTD ILVIRELTGG LYFGEKKREQ TPTGQIAVDT LVYTTEEITR IARLAFETAR
KRKKKLCSVD KANVLESSRL WRETVTELGR EYPDVELTHM YVDNCAMQLV RWPKQFDVIV
TENTFGDILT DQASMISGSL GMLASASIGG KVALYEPSHG SAPDIAGQKK ANPIATILSA
ALMLRYSFNL EKEAQDIEKA IVRVLDKGYR TADIMQEGGI LVNTEEMGDR IAEEILEAK
//
