LEU1_ALIFM
ID LEU1_ALIFM Reviewed; 515 AA.
AC B5FGH4;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 14-OCT-2008, sequence version 1.
DT 25-MAY-2022, entry version 76.
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=VFMJ11_0283;
OS Aliivibrio fischeri (strain MJ11) (Vibrio fischeri).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Aliivibrio.
OX NCBI_TaxID=388396;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MJ11;
RA Mandel M.J., Stabb E.V., Ruby E.G., Ferriera S., Johnson J., Kravitz S.,
RA Beeson K., Sutton G., Rogers Y.-H., Friedman R., Frazier M., Venter J.C.;
RT "Complete sequence of Vibrio fischeri strain MJ11.";
RL Submitted (AUG-2008) 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; CP001139; ACH65003.1; -; Genomic_DNA.
DR RefSeq; WP_012532762.1; NC_011184.1.
DR AlphaFoldDB; B5FGH4; -.
DR SMR; B5FGH4; -.
DR EnsemblBacteria; ACH65003; ACH65003; VFMJ11_0283.
DR KEGG; vfm:VFMJ11_0283; -.
DR HOGENOM; CLU_022158_0_1_6; -.
DR OMA; NTMRMLV; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000001857; Chromosome I.
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..515
FT /note="2-isopropylmalate synthase"
FT /id="PRO_1000149330"
FT DOMAIN 5..267
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ SEQUENCE 515 AA; 56258 MW; C0B96088253EBD70 CRC64;
MSDQVIIFDT TLRDGEQALS ASLTVKEKLQ IAYALERLGV DVIEAGFPVS SPGDFESVRT
IAQHIKNSRI CGLSRAVAKD IDAAAEALKV AEAFRIHTFI STSTVHVQDK LRRSYDDVVE
MGVKAVKHAR KYTDDVEFSC EDAGRTPIDN LCRMVEAAIN AGANTINIPD TVGYTVPGEF
GGIVQTLFNR VPNIDKAIIS VHCHDDLGMS VANSIAAVQA GARQVEGTIN GIGERAGNCS
LEEIAMILKT RSEYLGVHTN LKHDEIHRTS KLVSQLCNMP IQSNKAIVGA NAFSHSSGIH
QDGMLKNKNT YEIMTPESIG LKNQALNLTS RSGRAAVKSH MDEMGYKEDE YNLDTLYADF
VKLADRKGQV FDYDLEALMH FANLRDEDDF YKLNYLSVQS GSVMATTSIK LLCGDEEKCE
AAVGNGPVDA LYQCIYKLTG YDIVLDKFDL TAKGEGEDGL GQADIIANYK GRKYHGTGLA
TDIIEASGQA LLHVINSIHR ADQIAEIKQK KVETV