LEU3_BACCZ
ID LEU3_BACCZ Reviewed; 354 AA.
AC Q63DX7;
DT 10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT 25-OCT-2004, sequence version 1.
DT 03-AUG-2022, entry version 109.
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=BCE33L1286;
OS Bacillus cereus (strain ZK / E33L).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=288681;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ZK / E33L;
RX PubMed=16621833; DOI=10.1128/jb.188.9.3382-3390.2006;
RA Han C.S., Xie G., Challacombe J.F., Altherr M.R., Bhotika S.S., Bruce D.,
RA Campbell C.S., Campbell M.L., Chen J., Chertkov O., Cleland C.,
RA Dimitrijevic M., Doggett N.A., Fawcett J.J., Glavina T., Goodwin L.A.,
RA Hill K.K., Hitchcock P., Jackson P.J., Keim P., Kewalramani A.R.,
RA Longmire J., Lucas S., Malfatti S., McMurry K., Meincke L.J., Misra M.,
RA Moseman B.L., Mundt M., Munk A.C., Okinaka R.T., Parson-Quintana B.,
RA Reilly L.P., Richardson P., Robinson D.L., Rubin E., Saunders E., Tapia R.,
RA Tesmer J.G., Thayer N., Thompson L.S., Tice H., Ticknor L.O., Wills P.L.,
RA Brettin T.S., Gilna P.;
RT "Pathogenomic sequence analysis of Bacillus cereus and Bacillus
RT thuringiensis isolates closely related to Bacillus anthracis.";
RL J. Bacteriol. 188:3382-3390(2006).
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; CP000001; AAU18962.1; -; Genomic_DNA.
DR RefSeq; WP_000415358.1; NZ_CP009968.1.
DR AlphaFoldDB; Q63DX7; -.
DR SMR; Q63DX7; -.
DR EnsemblBacteria; AAU18962; AAU18962; BCE33L1286.
DR KEGG; bcz:BCE33L1286; -.
DR PATRIC; fig|288681.22.peg.4268; -.
DR OMA; EYDLGAR; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000002612; 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..354
FT /note="3-isopropylmalate dehydrogenase"
FT /id="PRO_0000083636"
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 130
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT BINDING 215
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT BINDING 215
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT BINDING 239
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT BINDING 243
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT BINDING 273..285
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT SITE 137
FT /note="Important for catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
FT SITE 183
FT /note="Important for catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01033"
SQ SEQUENCE 354 AA; 38493 MW; 67E055F07ED68F45 CRC64;
MEKRIVCLAG DGVGPEVMES AKEVLHMVER LYGHHFHLQD EHFGGVAIDL TGQPLPQRTL
AACLASDAVL LGAVGGPRWD GAKERPEKGL LALRKGLGVF ANVRPVTVES ETAHLSPLKK
ADEIDFVVVR ELTGGIYFSY PKERTDEVAT DTLTYHRHEI ERIVSYAFQL ASKRKKKVTS
IDKANVLESS KLWRTVTEEV ALRYPDVELE HILVDAAAME LIRNPGRFDV IVTENLFGDI
LSDEASVLAG SLGMLPSASH AEKGPSLYEP IHGSAPDIAG KNKANPIAMM RSVAMMLGQS
FGLTREGCAI EEAISAVLKS GKCTEDIGGT ETTTSFTKAV MQEMEEQALV GRGR
