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LEU1_ACIET
ID   LEU1_ACIET              Reviewed;         512 AA.
AC   B9MA32;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 74.
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=Dtpsy_1948;
OS   Acidovorax ebreus (strain TPSY) (Diaphorobacter sp. (strain TPSY)).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Diaphorobacter.
OX   NCBI_TaxID=535289;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TPSY;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Coates J.D.;
RT   "Complete sequence of Diaphorobacter sp. TPSY.";
RL   Submitted (JAN-2009) 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; CP001392; ACM33404.1; -; Genomic_DNA.
DR   RefSeq; WP_015913456.1; NC_011992.1.
DR   AlphaFoldDB; B9MA32; -.
DR   SMR; B9MA32; -.
DR   STRING; 535289.Dtpsy_1948; -.
DR   EnsemblBacteria; ACM33404; ACM33404; Dtpsy_1948.
DR   KEGG; dia:Dtpsy_1948; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_4; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000000450; 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..512
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149179"
FT   DOMAIN          5..268
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   512 AA;  55456 MW;  63656656ED1122D9 CRC64;
     MTDKLIIFDT TLRDGEQSPG ASMTRDEKLR IARQLERLRV DVIEAGFAAS SNGDFESVQA
     IARAVKDSTV CSLARANDRD IARAAEALKE ANRARIHTFI ATSALHMEKK LRMTPEQVLE
     QARQAVRFAR NLVEDIEFSP EDGYRSDPDF LCRVIETVIA EGATTINVPD TVGYAIPELY
     GNFIKNLRER IPNSDKAIWS VHCHNDLGMA VANSLAGVKI GGARQVECTI NGLGERAGNC
     SLEEVVMAVK TRRDYFGLDV GIDTQHIVAA SRMVSQTTGF VVQPNKAVVG ANAFAHASGI
     HQDGVLKARD TYEIMRAEDV GWSANKIVLG KLSGRNAFKQ RLQELGVQLE SEGEINVAFA
     KFKELADRKS EIFDEDILAL VSDESVTSEK EQFGFVSLAQ HSETGERPEA TIVFTVDGKE
     VRSSAEGNGP VDASMKAIEA HVRSGAEMVL YSVNAISGST ESQGEVTVRL QSAGRVVNGV
     GADPDIVVAS AKAYLSALNK LQSKAERVAA QG
 
 
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