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LEU1_ARTS2
ID   LEU1_ARTS2              Reviewed;         579 AA.
AC   A0JX36;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=2-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_00572};
DE            EC=2.3.3.13 {ECO:0000255|HAMAP-Rule:MF_00572};
DE   AltName: Full=Alpha-IPM synthase {ECO:0000255|HAMAP-Rule:MF_00572};
DE   AltName: Full=Alpha-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_00572};
GN   Name=leuA {ECO:0000255|HAMAP-Rule:MF_00572}; OrderedLocusNames=Arth_2226;
OS   Arthrobacter sp. (strain FB24).
OC   Bacteria; Actinobacteria; Micrococcales; Micrococcaceae; Arthrobacter.
OX   NCBI_TaxID=290399;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FB24;
RX   PubMed=24501649; DOI=10.4056/sigs.4438185;
RA   Nakatsu C.H., Barabote R., Thompson S., Bruce D., Detter C., Brettin T.,
RA   Han C., Beasley F., Chen W., Konopka A., Xie G.;
RT   "Complete genome sequence of Arthrobacter sp. strain FB24.";
RL   Stand. Genomic Sci. 9:106-116(2013).
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_00572}.
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_00572};
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_00572}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00572}.
CC   -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC       family. LeuA type 2 subfamily. {ECO:0000255|HAMAP-Rule:MF_00572}.
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DR   EMBL; CP000454; ABK03606.1; -; Genomic_DNA.
DR   RefSeq; WP_011692070.1; NC_008541.1.
DR   AlphaFoldDB; A0JX36; -.
DR   SMR; A0JX36; -.
DR   STRING; 290399.Arth_2226; -.
DR   PRIDE; A0JX36; -.
DR   EnsemblBacteria; ABK03606; ABK03606; Arth_2226.
DR   KEGG; art:Arth_2226; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_004588_3_0_11; -.
DR   OMA; WPDKVID; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000000754; 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   CDD; cd07942; DRE_TIM_LeuA; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   Gene3D; 3.30.160.270; -; 1.
DR   HAMAP; MF_00572; LeuA_type2; 1.
DR   InterPro; IPR013709; 2-isopropylmalate_synth_dimer.
DR   InterPro; IPR002034; AIPM/Hcit_synth_CS.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR005668; IPM_Synthase.
DR   InterPro; IPR036230; LeuA_allosteric_dom_sf.
DR   InterPro; IPR039371; LeuA_N_DRE-TIM.
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; TIGR00970; leuA_yeast; 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..579
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000025028"
FT   DOMAIN          40..314
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   579 AA;  63597 MW;  CF3C48DF82F898AD CRC64;
     MRNAQKPSGM PVHRYMPFQD QITVELPDRT WPDKVITKAP RWCAVDLRDG NQALIDPMSP
     ARKMKMFDLL VRMGYKEIEV GFPSASQTDF DFVRQLIEGN HIPDDVTIQV LTQAREHLIE
     RTYESLVGAK QAIVHLYNST SVLQRRVVFN QDEDGILDIA LQGARLCKKY EETLADTHIT
     YEYSPESFTG TELEYAVRVC NAVADVFEAS ADSQVIINLP ATVEMATPNV YADSIEWMSR
     HLHPREGIIL SLHPHNDRGT GVAAAELGYL AGADRIEGCL FGNGERTGNV DLVTLGLNMF
     VQGIDPMIDF SDIDDVRRTV EYCNQLPVAE RSPYGGDLVF TAFSGSHQDA IKKGFEALEK
     DAAAAGKDVA DYTWQVPYLP VDPKDLGRSY EAVIRVNSQS GKGGVAYLLK NEHSLDLPRR
     AQIEFSGVIQ KRTDTVGGEV SGAQLWQIFQ DEYLPSSKED GQWGRYSLGS FSTETDDDGA
     MTLHATVTVD GVQVRRTGSG NGPIAALLSI LGQDGVDVRV LDYSEHALSE GGNARAAAYV
     ECAVGERVLW GVGIDSNTTT SSLKAVISAV NRAIRDAQA
 
 
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