LEU1_RHIL3
ID LEU1_RHIL3 Reviewed; 560 AA.
AC Q1MDH6;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 30-MAY-2006, sequence version 1.
DT 25-MAY-2022, entry version 93.
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=RL3513;
OS Rhizobium leguminosarum bv. viciae (strain 3841).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX NCBI_TaxID=216596;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=3841;
RX PubMed=16640791; DOI=10.1186/gb-2006-7-4-r34;
RA Young J.P.W., Crossman L.C., Johnston A.W.B., Thomson N.R., Ghazoui Z.F.,
RA Hull K.H., Wexler M., Curson A.R.J., Todd J.D., Poole P.S., Mauchline T.H.,
RA East A.K., Quail M.A., Churcher C., Arrowsmith C., Cherevach I.,
RA Chillingworth T., Clarke K., Cronin A., Davis P., Fraser A., Hance Z.,
RA Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA Rabbinowitsch E., Sanders M., Simmonds M., Whitehead S., Parkhill J.;
RT "The genome of Rhizobium leguminosarum has recognizable core and accessory
RT components.";
RL Genome Biol. 7:R34.1-R34.20(2006).
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; AM236080; CAK09001.1; -; Genomic_DNA.
DR AlphaFoldDB; Q1MDH6; -.
DR SMR; Q1MDH6; -.
DR STRING; 216596.RL3513; -.
DR PRIDE; Q1MDH6; -.
DR EnsemblBacteria; CAK09001; CAK09001; RL3513.
DR KEGG; rle:RL3513; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_004588_3_0_5; -.
DR OMA; WPDKVID; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000006575; 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; Transferase.
FT CHAIN 1..560
FT /note="2-isopropylmalate synthase"
FT /id="PRO_1000025040"
FT DOMAIN 30..303
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ SEQUENCE 560 AA; 62262 MW; CFBA7BFCDD890913 CRC64;
MPDAAVKYRA YPQVNIPDRT WPTKTITKAP VWCSVDLRDG NQALVDPMGH DRKARMFHLL
IEMGFKEIEI GFPSASQTDF DFARWCVEEG NVPDDVSLQV LVQCRPELIT RTFEALEGAN
RPIVHFYNST SELQRRVVFA KDVQGIKQIA VDAAKMITDM ATKAGGGYRF EYSPESFTGT
ELDVALEICN AVIEVVKPTP DNKLIINLPS TVEMATPNVY ADQIEWMCRN LDNRENLIVS
LHPHNDRGTG IAAAELALLA GADRVEGTLF GNGERTGNVD MVTMALNMFT QGVDPEIDCS
NIERIKEVFE YSNQMAIGER HPYVGELVYT AFSGSHQDAI NKGMKAAQVA NHPVWEVPYL
PIDPRDVGRS YEAIIRINSQ SGKGGIAYIL QQDYGLNLPR NLQVEFREDI QRITDVEGKE
LPSRRIYDRF IERYVTQPEG RLRFVDHHTY PDTEHKGQRI VAAEITDNGE IKRIEGRGNG
PIDGFINALS HYLGIEMSVE DYSEHSLQHG SNAAAISYVE TSYPGGKLFG AGINTNIVAA
SLEAIVSAAN RVLDVKAGKA