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LEU3_STAES
ID   LEU3_STAES              Reviewed;         347 AA.
AC   Q8CNL2;
DT   31-OCT-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01033};
DE            EC=1.1.1.85 {ECO:0000255|HAMAP-Rule:MF_01033};
DE   AltName: Full=3-IPM-DH {ECO:0000255|HAMAP-Rule:MF_01033};
DE   AltName: Full=Beta-IPM dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01033};
DE            Short=IMDH {ECO:0000255|HAMAP-Rule:MF_01033};
GN   Name=leuB {ECO:0000255|HAMAP-Rule:MF_01033}; OrderedLocusNames=SE_1659;
OS   Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=176280;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 12228 / FDA PCI 1200;
RX   PubMed=12950922; DOI=10.1046/j.1365-2958.2003.03671.x;
RA   Zhang Y.-Q., Ren S.-X., Li H.-L., Wang Y.-X., Fu G., Yang J., Qin Z.-Q.,
RA   Miao Y.-G., Wang W.-Y., Chen R.-S., Shen Y., Chen Z., Yuan Z.-H.,
RA   Zhao G.-P., Qu D., Danchin A., Wen Y.-M.;
RT   "Genome-based analysis of virulence genes in a non-biofilm-forming
RT   Staphylococcus epidermidis strain (ATCC 12228).";
RL   Mol. Microbiol. 49:1577-1593(2003).
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_01033}.
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_01033};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01033};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01033};
CC       Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01033};
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_01033}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01033}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01033}.
CC   -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC       dehydrogenases family. LeuB type 1 subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_01033}.
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DR   EMBL; AE015929; AAO05258.1; -; Genomic_DNA.
DR   RefSeq; NP_765214.1; NC_004461.1.
DR   RefSeq; WP_001830006.1; NZ_WBME01000022.1.
DR   AlphaFoldDB; Q8CNL2; -.
DR   SMR; Q8CNL2; -.
DR   STRING; 176280.SE_1659; -.
DR   EnsemblBacteria; AAO05258; AAO05258; SE_1659.
DR   KEGG; sep:SE_1659; -.
DR   PATRIC; fig|176280.10.peg.1623; -.
DR   eggNOG; COG0473; Bacteria.
DR   HOGENOM; CLU_031953_0_3_9; -.
DR   OMA; EYDLGAR; -.
DR   UniPathway; UPA00048; UER00072.
DR   Proteomes; UP000001411; 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_01033; LeuB_type1; 1.
DR   InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR   InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR   InterPro; IPR004429; Isopropylmalate_DH.
DR   PANTHER; PTHR42979; PTHR42979; 1.
DR   Pfam; PF00180; Iso_dh; 1.
DR   SMART; SM01329; Iso_dh; 1.
DR   TIGRFAMs; TIGR00169; leuB; 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..347
FT                   /note="3-isopropylmalate dehydrogenase"
FT                   /id="PRO_0000083757"
FT   BINDING         76..87
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         94
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         104
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         132
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         217
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         217
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         241
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         245
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   BINDING         275..287
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   SITE            139
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT   SITE            185
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
SQ   SEQUENCE   347 AA;  38504 MW;  C6F34AD6EC391CDA CRC64;
     MSYKIVALPG DGIGPEILSG TLELLKLISE KYHFEYHLES HHFGGVSIDY YGTPLTNETL
     QSCKNADAIL LGAIGGPKWT DPNNRPEHGL LKLRKSLNLF ANIRPTFVTK GASHLSPLKQ
     DIVEGTDLVI VRELTSGIYF GEPSYVKKTE ALDSLKYSSQ EIERIVRIAF NLANRRRKKL
     TSVDKENVLS SSKLWRQIVN DVKKDYPEVE VNHMLVDACS MHLITQPTQF DVIVTENLFG
     DILSDEASVI PGSLGLSPSA SFGQTGTRLY EPIHGSAPDI ANEDKANPFG MVLSLALCLR
     ESLNQNDAAN ELESIVYSFI QSNKTTADLG GQYRTSKIFK LLKEKYL
 
 
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