LEU1_ACIAC
ID LEU1_ACIAC Reviewed; 512 AA.
AC A1TRT4;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 06-FEB-2007, sequence version 1.
DT 25-MAY-2022, entry version 92.
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=Aave_3108;
OS Acidovorax citrulli (strain AAC00-1) (Acidovorax avenae subsp. citrulli).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Acidovorax.
OX NCBI_TaxID=397945;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AAC00-1;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Dalin E., Tice H., Pitluck S., Kiss H., Brettin T.,
RA Bruce D., Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Kim E., Stahl D., Richardson P.;
RT "Complete sequence of Acidovorax avenae subsp. citrulli AAC00-1.";
RL Submitted (DEC-2006) 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; CP000512; ABM33672.1; -; Genomic_DNA.
DR RefSeq; WP_011796182.1; NC_008752.1.
DR AlphaFoldDB; A1TRT4; -.
DR SMR; A1TRT4; -.
DR STRING; 397945.Aave_3108; -.
DR EnsemblBacteria; ABM33672; ABM33672; Aave_3108.
DR KEGG; aav:Aave_3108; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_022158_0_1_4; -.
DR OMA; NTMRMLV; -.
DR OrthoDB; 840579at2; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000002596; 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..512
FT /note="2-isopropylmalate synthase"
FT /id="PRO_1000149116"
FT DOMAIN 5..268
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ SEQUENCE 512 AA; 55193 MW; 50A4C9F21014EFCA CRC64;
MSDKLIIFDT TLRDGEQSPG ASMTRDEKLR IARQLERLRV DVIEAGFAAS SNGDFEAVQA
IAQAIKDSTV CSLSRANDRD IARAAEALKD AQRARIHTFI ATSPLHMEKK LRMTPEQVLE
QAKQSVRFAR NLVADIEFSP EDGYRSEPDF LCRVLEAVIA EGATTINVPD TVGYAIPELY
GNFIRNLRER IPNSDKAVWS VHCHNDLGMA VANSLAGVKI GGARQVECTI NGLGERAGNC
SLEEIVMAVK TRRDYFGLEL GIDTQHIVAA SRMVSQTTGF VVQPNKAVVG ANAFAHASGI
HQDGVLKARD TYEIMRAEDV GWTANKIVLG KLSGRNAFKQ RLQDLGVQLE SEADVNAAFL
RFKELADRKS EIFDEDILAL VSGDATAGAG ERYGFVSLSQ RSETGERPHA AVVFTVDGKE
VHGASEGNGP VDASLKAIES HVHSGAEMVL YSVNAISGST ESQGEVTVRL QDSGRVVNGV
GADPDIVVAS AKAYLSALNK LQSKAERVAA QG