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LEU1_RHOPT
ID   LEU1_RHOPT              Reviewed;         524 AA.
AC   B3QCX5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 78.
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=Rpal_2259;
OS   Rhodopseudomonas palustris (strain TIE-1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Rhodopseudomonas.
OX   NCBI_TaxID=395960;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TIE-1;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Lang D., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Emerson D.,
RA   Newman D.K., Roden E., Richardson P.;
RT   "Complete sequence of Rhodopseudomonas palustris TIE-1.";
RL   Submitted (MAY-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; CP001096; ACF00780.1; -; Genomic_DNA.
DR   RefSeq; WP_012495562.1; NC_011004.1.
DR   AlphaFoldDB; B3QCX5; -.
DR   SMR; B3QCX5; -.
DR   EnsemblBacteria; ACF00780; ACF00780; Rpal_2259.
DR   KEGG; rpt:Rpal_2259; -.
DR   HOGENOM; CLU_022158_0_1_5; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   BioCyc; RPAL395960:RPAL_RS11215-MON; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000001725; 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; Transferase.
FT   CHAIN           1..524
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149261"
FT   DOMAIN          12..274
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   524 AA;  57553 MW;  331439CC8D71A49E CRC64;
     MTTTTQSEQD RVIIFDTTLR DGEQCPGATM TFEEKLNVAR MLDDMGVDVI EAGYPFASDG
     DFEAVHEIAK RSKNSVICGL SRAAHKDIDR CAEAIKPAER GRIHTFLSTS PVHMKYKLQM
     EAAQVYEMVI SSVTRARNHT DDVEWSAEDA TRTEFDFLCR CIEAAIKAGA TTINLPDTVG
     YAVPEEYREL FRKVRETVPN SDKARFSVHC HNDLGMAVAN SMAGVAGGAR QIECTINGIG
     ERAGNAALEE VVMAMRVRQD KLPYWNRIET TMLTHASKTV SAATSFPVQY NKAIVGRNAF
     AHESGIHQDG MIKNAQTYEI MTPETVGVKG TSLVMGKHSG RAGLIHKMEE LGYKLSRNQI
     EDVFVRFKAL ADRKKDVYDE DIEALVDEQL LHGQDQIKLM SLTVIAGTHG PQRATMKLDV
     DGQIRIEEAE GNGPVDAVFN CIKALVPHDA KLELYQVHAV TEGTDAQAEV SVRLSHEGRS
     MTARAADPDT LVASAKAYLG ALNKIVAKRQ RSVREDAPTV AVAG
 
 
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