ID   LEU1_WOLSU              Reviewed;         519 AA.
AC   Q7M9W4;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   25-MAY-2022, entry version 99.
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=WS0624;
OS   Wolinella succinogenes (strain ATCC 29543 / DSM 1740 / LMG 7466 / NCTC
OS   11488 / FDC 602W) (Vibrio succinogenes).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Wolinella.
OX   NCBI_TaxID=273121;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29543 / DSM 1740 / CCUG 13145 / JCM 31913 / LMG 7466 / NCTC
RC   11488 / FDC 602W;
RX   PubMed=14500908; DOI=10.1073/pnas.1932838100;
RA   Baar C., Eppinger M., Raddatz G., Simon J., Lanz C., Klimmek O.,
RA   Nandakumar R., Gross R., Rosinus A., Keller H., Jagtap P., Linke B.,
RA   Meyer F., Lederer H., Schuster S.C.;
RT   "Complete genome sequence and analysis of Wolinella succinogenes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:11690-11695(2003).
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; BX571658; CAE09755.1; -; Genomic_DNA.
DR   RefSeq; WP_011138555.1; NC_005090.1.
DR   AlphaFoldDB; Q7M9W4; -.
DR   SMR; Q7M9W4; -.
DR   STRING; 273121.WS0624; -.
DR   PRIDE; Q7M9W4; -.
DR   EnsemblBacteria; CAE09755; CAE09755; WS0624.
DR   KEGG; wsu:WS0624; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_7; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000000422; 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; Reference proteome; Transferase.
FT   CHAIN           1..519
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_0000140399"
FT   DOMAIN          6..267
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   519 AA;  56539 MW;  ADF758108DA0F484 CRC64;
     MSAEMIKIFD TTLRDGEQSP GASMNTEEKI RIAKQLERLG VDVIEAGFAA ASPGDFDAIS
     KIASAVSEST ICSLARAVEK DIKAAADSLA PAKLKRIHTF IATSPIHMEY KLRMTPSEVI
     KRAVEAIAYA KSFMEDVEFS CEDAGRSDVG FLKEILAAVI EAGAGTLNIP DTVGYRLPHE
     MGAIIKELHE FVGNRAILSV HCHNDLGLAV ANSLYCIQSG ARQVECTVNG LGERAGNAAL
     EEIVMAIKTR RDIFGGLDTR INTKEIYASS QLVANITGIR PQPNKAIVGK NAFAHESGIH
     QDGVLKHKET YEIMHASDIG LGEQESIVLG KHSGRHAFKD KIKALGFEVS YEELNAAFDR
     FKALCDQKKE IYDEDIRAIL AEETSHIPKV YELVGIQLSD CSMGRPYAAI TLKKEGSEEI
     VDAAIGNGSV DALFKTIDRI SQIKGELKDY KVEAVTQGKD ALAKVVVKVE FEENKPAIIG
     HGLHIDTMLA TAKAYVGALN SYLSMRELMG KKKCEEERI