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LEU1_BACAA
ID   LEU1_BACAA              Reviewed;         506 AA.
AC   C3P4Z6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2009, sequence version 1.
DT   25-MAY-2022, entry version 64.
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=BAA_1487;
OS   Bacillus anthracis (strain A0248).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=592021;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=A0248;
RA   Dodson R.J., Munk A.C., Bruce D., Detter C., Tapia R., Sutton G., Sims D.,
RA   Brettin T.;
RT   "Genome sequence of Bacillus anthracis A0248.";
RL   Submitted (APR-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; CP001598; ACQ49653.1; -; Genomic_DNA.
DR   RefSeq; WP_000809586.1; NC_012659.1.
DR   AlphaFoldDB; C3P4Z6; -.
DR   SMR; C3P4Z6; -.
DR   GeneID; 45021399; -.
DR   KEGG; bai:BAA_1487; -.
DR   HOGENOM; CLU_022158_0_1_9; -.
DR   OMA; NTMRMLV; -.
DR   UniPathway; UPA00048; UER00070.
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..506
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149126"
FT   DOMAIN          4..266
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   506 AA;  55375 MW;  F1C0FCF7ED4E11CD CRC64;
     MKQILFMDTT LRDGEQSPGV NLNEQEKLQI ARQLERLGIH VMEAGFAAAS EGDFQSVKRI
     ANTIQNATVM SLARAKESDI RRAYEAVKGA VSPRLHVFLA TSDIHMKYKL CMSKEDVLDS
     IYRSVTLGKS LFPTVQFSAE DATRTARDFL AEAVEVAIRA GANVINIPDT VGYTNPEEYY
     ALFKYLQESV PSYEKAIFSC HCHDDLGMAV ANSLAAVEGG ALQVEGTING IGERAGNAAL
     EEVAVALHIR KDFYKAEPSM TLKEIKATST LVSRLTGMVV SKNKAIVGAN AFAHESGIHQ
     DGVLKEVTTY EIIEPALVGE SQNLFVLGKH SGRHAFTEKM KELGYEFTND ERDAVFEAFK
     KLADRKKEIT EEDLRALMLG EAAFAAQQYN ITQLQVHFVS NSTQCATVVL KDEEGNVFED
     AATGSGSIEA IYNAIQRILG LECELADYRI QSITQGQDAL AHVHVELKEG AHQVSGFGVA
     QDVLEASARA YVHAAGKLKS FIQLVK
 
 
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