ID LEU1_BRADU Reviewed; 520 AA.
AC Q89GB0;
DT 15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 27-MAR-2024, entry version 113.
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=bll6435;
OS Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 /
OS NBRC 14792 / USDA 110).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Bradyrhizobium.
OX NCBI_TaxID=224911;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110;
RX PubMed=12597275; DOI=10.1093/dnares/9.6.189;
RA Kaneko T., Nakamura Y., Sato S., Minamisawa K., Uchiumi T., Sasamoto S.,
RA Watanabe A., Idesawa K., Iriguchi M., Kawashima K., Kohara M.,
RA Matsumoto M., Shimpo S., Tsuruoka H., Wada T., Yamada M., Tabata S.;
RT "Complete genomic sequence of nitrogen-fixing symbiotic bacterium
RT Bradyrhizobium japonicum USDA110.";
RL DNA Res. 9:189-197(2002).
CC -!- FUNCTION: Catalyzes the condensation of the acetyl group of acetyl-CoA
CC with 3-methyl-2-oxobutanoate (2-ketoisovalerate) 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 -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
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: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01025}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {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; BA000040; BAC51700.1; -; Genomic_DNA.
DR RefSeq; NP_773075.1; NC_004463.1.
DR RefSeq; WP_011089175.1; NZ_CP011360.1.
DR AlphaFoldDB; Q89GB0; -.
DR SMR; Q89GB0; -.
DR STRING; 224911.AAV28_29735; -.
DR EnsemblBacteria; BAC51700; BAC51700; BAC51700.
DR GeneID; 64026192; -.
DR KEGG; bja:bll6435; -.
DR PATRIC; fig|224911.44.peg.6420; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_022158_0_1_5; -.
DR InParanoid; Q89GB0; -.
DR OrthoDB; 9803573at2; -.
DR PhylomeDB; Q89GB0; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000002526; Chromosome.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0003852; F:2-isopropylmalate synthase activity; IBA:GO_Central.
DR GO; GO:0003985; F:acetyl-CoA C-acetyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IBA:GO_Central.
DR CDD; cd07940; DRE_TIM_IPMS; 1.
DR Gene3D; 1.10.238.260; -; 1.
DR Gene3D; 3.30.160.270; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 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 NCBIfam; TIGR00973; leuA_bact; 1.
DR PANTHER; PTHR10277:SF9; 2-ISOPROPYLMALATE SYNTHASE 1, CHLOROPLASTIC-RELATED; 1.
DR PANTHER; PTHR10277; HOMOCITRATE SYNTHASE-RELATED; 1.
DR Pfam; PF00682; HMGL-like; 1.
DR Pfam; PF08502; LeuA_dimer; 1.
DR SMART; SM00917; LeuA_dimer; 1.
DR SUPFAM; SSF110921; 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain; 1.
DR SUPFAM; SSF51569; Aldolase; 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; Cytoplasm;
KW Leucine biosynthesis; Manganese; Metal-binding; Reference proteome;
KW Transferase.
FT CHAIN 1..520
FT /note="2-isopropylmalate synthase"
FT /id="PRO_0000140333"
FT DOMAIN 12..274
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
FT REGION 398..520
FT /note="Regulatory domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
FT BINDING 21
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
FT BINDING 209
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
FT BINDING 211
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
FT BINDING 245
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01025"
SQ SEQUENCE 520 AA; 56764 MW; 368609D7EA5F5467 CRC64;
MAPVNKSDKD RVIIFDTTLR DGEQCPGATM TFEEKLEVAE LLDDMGVDVI EAGFPITSEG
DFQAVSEIAR RSKNAVIAGL SRAHPADIDR CAEAVKFAKR GRVHTVIATS PLHMRVKLNK
TPEQVIETSV AMVARARNQI DDVEWSAEDG TRSEMDYLCR IVEAVIKAGA TTVNIPDTVG
YTVPEEYTHF MKTLIERVPN SDKAVFSVHC HNDLGMAVAN SLAGVVGGAR QVECTINGIG
ERAGNAALEE IVMAINVRND KFPYWNKIDT TQLTRASKVV SAATSFPVQY NKAIVGRNAF
AHESGIHQDG VLKDASTYEI MRPEMVGLKQ SSLVLGKHSG RHAFVHKLEE MGYKLGPNQL
EDAFTRMKAL ADRKKDIYDE DIEALVDEEM AASHDRIKLT SLTVIAGTHG PQRATMKLDV
DGQIKIEEAE GNGPVDAVFN CIKRLVPHEA KLELYQVHAV TEGTDAQAEV SVRLSHDGRS
MTARAADPDT LVASAKAYLG ALNKIVMKRQ RDTVTTAAAS
//
