ID   LEU1_LEPIC              Reviewed;         501 AA.
AC   Q72RL9;
DT   30-AUG-2005, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 2.
DT   25-MAY-2022, entry version 95.
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=LIC_11726;
OS   Leptospira interrogans serogroup Icterohaemorrhagiae serovar copenhageni
OS   (strain Fiocruz L1-130).
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=267671;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Fiocruz L1-130;
RX   PubMed=15028702; DOI=10.1128/jb.186.7.2164-2172.2004;
RA   Nascimento A.L.T.O., Ko A.I., Martins E.A.L., Monteiro-Vitorello C.B.,
RA   Ho P.L., Haake D.A., Verjovski-Almeida S., Hartskeerl R.A., Marques M.V.,
RA   Oliveira M.C., Menck C.F.M., Leite L.C.C., Carrer H., Coutinho L.L.,
RA   Degrave W.M., Dellagostin O.A., El-Dorry H., Ferro E.S., Ferro M.I.T.,
RA   Furlan L.R., Gamberini M., Giglioti E.A., Goes-Neto A., Goldman G.H.,
RA   Goldman M.H.S., Harakava R., Jeronimo S.M.B., Junqueira-de-Azevedo I.L.M.,
RA   Kimura E.T., Kuramae E.E., Lemos E.G.M., Lemos M.V.F., Marino C.L.,
RA   Nunes L.R., de Oliveira R.C., Pereira G.G., Reis M.S., Schriefer A.,
RA   Siqueira W.J., Sommer P., Tsai S.M., Simpson A.J.G., Ferro J.A.,
RA   Camargo L.E.A., Kitajima J.P., Setubal J.C., Van Sluys M.A.;
RT   "Comparative genomics of two Leptospira interrogans serovars reveals novel
RT   insights into physiology and pathogenesis.";
RL   J. Bacteriol. 186:2164-2172(2004).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAS70315.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AE016823; AAS70315.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q72RL9; -.
DR   SMR; Q72RL9; -.
DR   PaxDb; Q72RL9; -.
DR   EnsemblBacteria; AAS70315; AAS70315; LIC_11726.
DR   KEGG; lic:LIC_11726; -.
DR   HOGENOM; CLU_022158_0_1_12; -.
DR   OMA; NTMRMLV; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000007037; Chromosome I.
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..501
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_0000140357"
FT   DOMAIN          7..269
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   501 AA;  54744 MW;  42367A0105493548 CRC64;
     MDLKDYVRIF DTTLRDGEQC PGAAMTENEK LEIASQLATM KVDIIEAGFP VSSPVQFQAV
     ERIARETEGP MIAALARAMK ADIEAASKAL QPAKKRRIHT FIASSPIHMK YKLGKEPKEV
     LKMAVEAVTL CRQFVDDVEF SPEDATRSEP EFLRELCEAV IAAGATTINI PDTVGYTTPA
     EYGGLFKFLL SNVRGAEKII FSAHCHNDLG LATANSLAAV QNGARQIECT INGIGERAGN
     TAMEEVVMAM RTRKDTFGIQ TQIKTEEIAR ASYLVKTITG MLVQPNKAIV GANAFAHESG
     IHQDGVIKHR ETYEIMKPET VGLSSNRMVL GRHSGRAGFK DRIVKLGFSP QVEELEAAYQ
     RFLEIADRKK EIYDEDIRAL FSEEARKSTG DRFQLEGFTV STGTKSTPTA GVRILIDGHV
     REESATGDGP VDAIYKAIQK TTGMDPEVSR LVISPVTEGQ DAMAEASVTL EYKGDRVVGK
     GSSTDIIEAC SRAYISALNR L