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LEU1_BRASB
ID   LEU1_BRASB              Reviewed;         523 AA.
AC   A5EP79;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=2-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_01025};
DE            EC=2.3.3.13 {ECO:0000255|HAMAP-Rule:MF_01025};
DE   AltName: Full=Alpha-IPM synthase {ECO:0000255|HAMAP-Rule:MF_01025};
DE   AltName: Full=Alpha-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_01025};
GN   Name=leuA {ECO:0000255|HAMAP-Rule:MF_01025}; OrderedLocusNames=BBta_6044;
OS   Bradyrhizobium sp. (strain BTAi1 / ATCC BAA-1182).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Bradyrhizobium; unclassified Bradyrhizobium.
OX   NCBI_TaxID=288000;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BTAi1 / ATCC BAA-1182;
RX   PubMed=17540897; DOI=10.1126/science.1139548;
RA   Giraud E., Moulin L., Vallenet D., Barbe V., Cytryn E., Avarre J.-C.,
RA   Jaubert M., Simon D., Cartieaux F., Prin Y., Bena G., Hannibal L.,
RA   Fardoux J., Kojadinovic M., Vuillet L., Lajus A., Cruveiller S., Rouy Z.,
RA   Mangenot S., Segurens B., Dossat C., Franck W.L., Chang W.-S., Saunders E.,
RA   Bruce D., Richardson P., Normand P., Dreyfus B., Pignol D., Stacey G.,
RA   Emerich D., Vermeglio A., Medigue C., Sadowsky M.;
RT   "Legumes symbioses: absence of nod genes in photosynthetic bradyrhizobia.";
RL   Science 316:1307-1312(2007).
CC   -!- FUNCTION: Catalyzes the condensation of the acetyl group of acetyl-CoA
CC       with 3-methyl-2-oxobutanoate (2-oxoisovalerate) to form 3-carboxy-3-
CC       hydroxy-4-methylpentanoate (2-isopropylmalate). {ECO:0000255|HAMAP-
CC       Rule:MF_01025}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-methyl-2-oxobutanoate + acetyl-CoA + H2O = (2S)-2-
CC         isopropylmalate + CoA + H(+); Xref=Rhea:RHEA:21524, ChEBI:CHEBI:1178,
CC         ChEBI:CHEBI:11851, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57287, ChEBI:CHEBI:57288; EC=2.3.3.13;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01025};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC       from 3-methyl-2-oxobutanoate: step 1/4. {ECO:0000255|HAMAP-
CC       Rule:MF_01025}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01025}.
CC   -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC       family. LeuA type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_01025}.
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DR   EMBL; CP000494; ABQ37973.1; -; Genomic_DNA.
DR   RefSeq; WP_012045924.1; NC_009485.1.
DR   AlphaFoldDB; A5EP79; -.
DR   SMR; A5EP79; -.
DR   STRING; 288000.BBta_6044; -.
DR   EnsemblBacteria; ABQ37973; ABQ37973; BBta_6044.
DR   KEGG; bbt:BBta_6044; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_5; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000000246; Chromosome.
DR   GO; GO:0003852; F:2-isopropylmalate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.70; -; 1.
DR   Gene3D; 3.30.160.270; -; 1.
DR   HAMAP; MF_01025; LeuA_type1; 1.
DR   InterPro; IPR013709; 2-isopropylmalate_synth_dimer.
DR   InterPro; IPR002034; AIPM/Hcit_synth_CS.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR036230; LeuA_allosteric_dom_sf.
DR   InterPro; IPR005671; LeuA_bact_synth.
DR   InterPro; IPR000891; PYR_CT.
DR   Pfam; PF00682; HMGL-like; 1.
DR   Pfam; PF08502; LeuA_dimer; 1.
DR   SMART; SM00917; LeuA_dimer; 1.
DR   SUPFAM; SSF110921; SSF110921; 1.
DR   TIGRFAMs; TIGR00973; leuA_bact; 1.
DR   PROSITE; PS00815; AIPM_HOMOCIT_SYNTH_1; 1.
DR   PROSITE; PS00816; AIPM_HOMOCIT_SYNTH_2; 1.
DR   PROSITE; PS50991; PYR_CT; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Leucine biosynthesis; Transferase.
FT   CHAIN           1..523
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149141"
FT   DOMAIN          12..274
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   523 AA;  56863 MW;  144C760BE74D3EC0 CRC64;
     MSSTTPSDKD RVVIFDTTLR DGEQCPGATM TFEEKLNIAA MLDGMGVDVI EAGFPIASDG
     DFEAVNEIAK RTQNAVVCGL SRAGAKDIDR CAEAIRPAKR GRIHTFLSTS PVHMKYKLQM
     EPQAVFELVV SSVTRARNHT DDVEWSSEDG TRTEFDFLCR CVEAAIKAGA TTINIPDTVG
     YAVPEEYYDL FKRVRETVPN SDKAVFSVHC HNDLGMAVAN SMAGIRAGAR QIECTINGIG
     ERAGNAALEE VVMAMRVRND KLPFWNKIDT TQLTHASKVV SAATSFPVQY NKAIVGRNAF
     AHESGIHQDG MLKNAQTYEI MLPETVGVKQ TSLVMGKHSG RHAFIHKLEE MGHKLAGNQV
     EDAFVRFKAL ADRKKHIYDE DIEALIDEGM VSAHDRIKLL SLSVIAGTRG PQRATMKLDV
     DGVTKIEESE GNGPVDAVFN CIKSLVPHEA KLELYQVHAV TEGTDAQAEV SVRLSQDGRS
     MTARAADPDT LVASAKAYLG ALNKLVMKRQ RDVAQGAAAA AAS
 
 
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