ID   LEU1_PARP8              Reviewed;         516 AA.
AC   B2JDN6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   25-MAY-2022, entry version 79.
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=Bphy_2017;
OS   Paraburkholderia phymatum (strain DSM 17167 / CIP 108236 / LMG 21445 /
OS   STM815) (Burkholderia phymatum).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Paraburkholderia.
OX   NCBI_TaxID=391038;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17167 / CIP 108236 / LMG 21445 / STM815;
RX   PubMed=25197461; DOI=10.4056/sigs.4861021;
RA   Moulin L., Klonowska A., Caroline B., Booth K., Vriezen J.A., Melkonian R.,
RA   James E.K., Young J.P., Bena G., Hauser L., Land M., Kyrpides N., Bruce D.,
RA   Chain P., Copeland A., Pitluck S., Woyke T., Lizotte-Waniewski M.,
RA   Bristow J., Riley M.;
RT   "Complete genome sequence of Burkholderia phymatum STM815(T), a broad host
RT   range and efficient nitrogen-fixing symbiont of Mimosa species.";
RL   Stand. Genomic Sci. 9:763-774(2014).
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; CP001043; ACC71196.1; -; Genomic_DNA.
DR   RefSeq; WP_012401404.1; NZ_CADFGH010000002.1.
DR   AlphaFoldDB; B2JDN6; -.
DR   SMR; B2JDN6; -.
DR   STRING; 391038.Bphy_2017; -.
DR   EnsemblBacteria; ACC71196; ACC71196; Bphy_2017.
DR   KEGG; bph:Bphy_2017; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_4; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000001192; 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; Reference proteome; Transferase.
FT   CHAIN           1..516
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149154"
FT   DOMAIN          5..268
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   516 AA;  55873 MW;  222F4FEF2C0D7C81 CRC64;
     MADKLIIFDT TLRDGEQSPG ASMTKEEKIR IAKQLERMKV DVIEAGFAAS SNGDFDAIHT
     IAGMIKDSTI CSLARANDKD IQRAADALKP ADHFRIHTFI ATSPLHMEKK LRMSPEQVLE
     QAKLAVRFAR KFTNDVEFSP EDGSRSDMDF LCRVLEAVIA EGATTINIAD TVGYGVPELY
     GNLVKTLRER IPNSDKAVFS VHCHNDLGMA VANSLAGVKI GGARQVECTI NGLGERAGNT
     SLEEIVMAVR TRKDYFGLDL GIDTTQIVPA SKLVSQITGF VVQPNKAVVG ANAFAHASGI
     HQDGVLKARD TYEIMRAEDV GWTANKIVLG KLSGRNAFKQ RLQELGISLD SESELNLAFQ
     RFKELADRKA EIFDEDIIAI VTEESAEAQE KEHYKFVSLS QHSETGERPH ARIVFSVEGK
     EVVGEANGNG PVDATLNAIE TEVGSGSELL LYSVNAITTG TQAQGEVTVR LSKAGRIVNG
     VGTDPDIVAA SAKAYISALN RLYAGADKLN PQRADI