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LEU1_RUTMC
ID   LEU1_RUTMC              Reviewed;         511 AA.
AC   A1AWA1;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=Rmag_0449;
OS   Ruthia magnifica subsp. Calyptogena magnifica.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; sulfur-oxidizing symbionts;
OC   Candidatus Ruthia.
OX   NCBI_TaxID=413404;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17303757; DOI=10.1126/science.1138438;
RA   Newton I.L.G., Woyke T., Auchtung T.A., Dilly G.F., Dutton R.J.,
RA   Fisher M.C., Fontanez K.M., Lau E., Stewart F.J., Richardson P.M.,
RA   Barry K.W., Saunders E., Detter J.C., Wu D., Eisen J.A., Cavanaugh C.M.;
RT   "The Calyptogena magnifica chemoautotrophic symbiont genome.";
RL   Science 315:998-1000(2007).
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; CP000488; ABL02208.1; -; Genomic_DNA.
DR   RefSeq; WP_011737833.1; NC_008610.1.
DR   AlphaFoldDB; A1AWA1; -.
DR   SMR; A1AWA1; -.
DR   STRING; 413404.Rmag_0449; -.
DR   EnsemblBacteria; ABL02208; ABL02208; Rmag_0449.
DR   KEGG; rma:Rmag_0449; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_6; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000002587; 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; Reference proteome; Transferase.
FT   CHAIN           1..511
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149262"
FT   DOMAIN          5..267
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   511 AA;  55287 MW;  96E1C3ABE9AB51A2 CRC64;
     MPNKLIIFDT TLRDGEQSPG ASMTRDEKVR IAKVLEKMQV DVIEAGFAIA SVGDFEAVQT
     VANVVQDSII CSLSRALDKD IDCAGEALKG ANASRIHTFI ATSDIHMKMK LQMTPDQVVE
     QAVRAVKRAK RYTNDVEFSP EDAGRSDEDF LCRIIEATIN AGATTINIPD TVGYNIPHQF
     GVTIKSLIGR VPNSDKAIFS AHCHNDLGLA VANSLSAVLN GARQVECTIN GLGERAGNTS
     LEELVMAVRT RQDIFDCDTD INATHILSAS RLVSSVTGFI VQPNKAIVGA NAFAHEAGIH
     QDGVIKYRET YEIMRAEDVG WNANQLVLGK HSGRNAFKVR LAELGVEFNN EEGLNDAFRR
     FKELADKKHE IFDEDLQALV SETQTEAYEA IKLVSLKVCT ETGEKNTATV VLSIDDKEQT
     ATANTSGAVD ATFIAISSLT GIKINLQLYS VSNVTQGTDA LGEVNVRLEC NGRIVNGQGV
     DTDIITASAK AYVHGLNKVL AATNKAQHPQ I
 
 
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