ID   LEU1_DESVM              Reviewed;         514 AA.
AC   B8DM91;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 73.
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=DvMF_1791;
OS   Desulfovibrio vulgaris (strain DSM 19637 / Miyazaki F).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Desulfovibrio.
OX   NCBI_TaxID=883;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 19637 / Miyazaki F;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Sims D., Brettin T., Detter J.C., Han C.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Hazen T.C.,
RA   Richardson P.;
RT   "Complete sequence of Desulfovibrio vulgaris str. 'Miyazaki F'.";
RL   Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001197; ACL08735.1; -; Genomic_DNA.
DR   RefSeq; WP_012612910.1; NC_011769.1.
DR   AlphaFoldDB; B8DM91; -.
DR   SMR; B8DM91; -.
DR   STRING; 883.DvMF_1791; -.
DR   PRIDE; B8DM91; -.
DR   EnsemblBacteria; ACL08735; ACL08735; DvMF_1791.
DR   KEGG; dvm:DvMF_1791; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_7; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
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..514
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149178"
FT   DOMAIN          8..270
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   514 AA;  55900 MW;  0D5E34397B4CB55F CRC64;
     MTIESGRIRI FDTTLRDGEQ SPGATMNLQE KIRLARQLET LGVDIMEAGF PASSQGDFEA
     VQAIARAVKG VEVAGLCRAM PADIDRAWEA VKVAENPRIH TFLATSPVHM QYKLRKEPDQ
     VVEMAVAAVR HAAKYTSNVE FSAEDASRSN PDFLVRVFEA VINAGATTIN VPDTVGYAQP
     EEFGRLIRYV IENTPNSHKA VFSVHCHNDL GMGVANTLAA LKAGARQAEV TISGIGERAG
     NASLEEIVMA LHTRRDFYQL DCGVVTEQLF PTCRLLSMII GQPIPPNKAI VGANAFAHES
     GIHQDGMLKN RETYEIMTPE SIGKTKTDLV IGKHSGRNAV KNKLDELGYR LEEAQLVTVF
     EAVKKLADKK KQIYDEDIEA LVLEEVYRLP DLYRLVNLSV QCSDTGMPPT AAVVMDVMGE
     VKRAAGFGVG PIDAVFNVIG EIVGRAPVLE RYSVTAITGG TDAQGEVTVR LRQNGSSAVG
     RGSDPDIILA SARAYVNALN RLAKKEEEQE KEGI