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LEU1_SHIDS
ID   LEU1_SHIDS              Reviewed;         523 AA.
AC   Q32K20;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 100.
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=SDY_0101;
OS   Shigella dysenteriae serotype 1 (strain Sd197).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=300267;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sd197;
RX   PubMed=16275786; DOI=10.1093/nar/gki954;
RA   Yang F., Yang J., Zhang X., Chen L., Jiang Y., Yan Y., Tang X., Wang J.,
RA   Xiong Z., Dong J., Xue Y., Zhu Y., Xu X., Sun L., Chen S., Nie H., Peng J.,
RA   Xu J., Wang Y., Yuan Z., Wen Y., Yao Z., Shen Y., Qiang B., Hou Y., Yu J.,
RA   Jin Q.;
RT   "Genome dynamics and diversity of Shigella species, the etiologic agents of
RT   bacillary dysentery.";
RL   Nucleic Acids Res. 33:6445-6458(2005).
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; CP000034; ABB60337.1; -; Genomic_DNA.
DR   RefSeq; WP_000082853.1; NC_007606.1.
DR   RefSeq; YP_401826.1; NC_007606.1.
DR   AlphaFoldDB; Q32K20; -.
DR   SMR; Q32K20; -.
DR   STRING; 300267.SDY_0101; -.
DR   EnsemblBacteria; ABB60337; ABB60337; SDY_0101.
DR   KEGG; sdy:SDY_0101; -.
DR   PATRIC; fig|300267.13.peg.120; -.
DR   HOGENOM; CLU_022158_0_1_6; -.
DR   OMA; NTMRMLV; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000002716; 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..523
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149297"
FT   DOMAIN          5..267
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   523 AA;  57314 MW;  C3ADE0DAB889851A CRC64;
     MSQQVIIFDT TLRDGEQALQ ASLSVKEKLQ IALALERMGV DVMEVGFPVS SPGDFESVQT
     IARQVKNSRV CALARCVEKD IDVAAESLKV AEAFRIHTFI ATSPMHIATK LRSTLDEVIE
     RAIYMVKRAR NYTDDVEFSC EDAGRTPIAD LARVVEAAIN AGATTINIPD TVGYTMPFEF
     AGIISGLYER VPNIDKAIIS VHTHDDLGLA VGNSLAAVHA GARQVEGAMN GIGERAGNCS
     LEEVIMAIKV RKDILNVHTA INHQEIWRTS QLVSQICNMP IPANKAIVGS GAFAHSSGIH
     QDGVLKNREN YEIMTPESIG LNQIQLNLTS RSGRAAVKHR MDEMGYKESE YNLDNLYDAF
     LKLADKKGQV FDYDLEALAF IGKQQEEPEH FRLDYFSVQS SSNDIATAAV KLACGEEVKA
     EAANGNGPVD AVYQAINRIT DYNVELVKYS LTAKGHGKDA LGQVDIVANY NGRRFHGVGL
     ATDIVESSAK AMVHVLNNIW RAAEVEKELQ RKAQHNENNK ETV
 
 
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