ID   LEU1_BURL3              Reviewed;         514 AA.
AC   Q39ED5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 98.
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};
GN   OrderedLocusNames=Bcep18194_A5587;
OS   Burkholderia lata (strain ATCC 17760 / DSM 23089 / LMG 22485 / NCIMB 9086 /
OS   R18194 / 383).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX   NCBI_TaxID=482957;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17760 / DSM 23089 / LMG 22485 / NCIMB 9086 / R18194 / 383;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M.,
RA   Vergez L., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A.,
RA   Richardson P.;
RT   "Complete sequence of chromosome 1 of Burkholderia sp. 383.";
RL   Submitted (OCT-2005) 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; CP000151; ABB09181.1; -; Genomic_DNA.
DR   RefSeq; WP_011352708.1; NZ_CABVQH010000009.1.
DR   AlphaFoldDB; Q39ED5; -.
DR   SMR; Q39ED5; -.
DR   EnsemblBacteria; ABB09181; ABB09181; Bcep18194_A5587.
DR   GeneID; 45095474; -.
DR   KEGG; bur:Bcep18194_A5587; -.
DR   PATRIC; fig|482957.22.peg.2553; -.
DR   HOGENOM; CLU_022158_0_1_4; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000002705; Chromosome 1.
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_1000149156"
FT   DOMAIN          5..268
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   514 AA;  55649 MW;  B48167B0BF1DD269 CRC64;
     MTDKLIIFDT TLRDGEQSPG ASMTKEEKIR IAKHLERMKV DVIEAGFAAS SNGDFDAIHT
     IAGLIKDSTI CSLARANDKD IQRAADALKP AESFRIHTFI ATSPLHMEKK LRMTPDQVFE
     QARLAVRFAR KFTDNVEFSP EDGSRSDMDF LCRVLEAVIA EGATTINIAD TVGYGVPELY
     GNLVKTLRER IPNSDKAIFS VHCHNDLGMA VANSLAGVKI GGARQIECTI NGLGERAGNT
     SLEEIVMAVK TRKDYFGLDV GIDTSQIVPT SKLVSQITGF VVQPNKAVVG ANAFAHASGI
     HQDGVLKARD TYEIMRAEDV GWTANKIVLG KLSGRNAFKQ RLQELGVSLD SESELNAAFM
     RFKDLADRKA EIFDEDIIAI VSEESALAHE QEHFKFVSLS QHSETGEQPH AKVVFGVEGK
     EVTGEARGNG PVDATFNAIE SEVGSGSELL LYSVNAITTG TQAQGEVTVR LSKSGRIVNG
     VGTDPDIVAA SAKAYISALN KLHSKDDKVN PQRS