ID   LEU1_MARMS              Reviewed;         558 AA.
AC   A6VSA9;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 88.
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=Mmwyl1_0400;
OS   Marinomonas sp. (strain MWYL1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC   Oceanospirillaceae; Marinomonas.
OX   NCBI_TaxID=400668;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MWYL1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Kiss H., Brettin T., Bruce D., Detter J.C., Han C.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Johnston A.W.B., Todd J.D., Rogers R., Wexler M., Bond P.L., Li Y.,
RA   Richardson P.;
RT   "Complete sequence of Marinomonas sp. MWYL1.";
RL   Submitted (JUN-2007) 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_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; CP000749; ABR69338.1; -; Genomic_DNA.
DR   RefSeq; WP_011978233.1; NC_009654.1.
DR   AlphaFoldDB; A6VSA9; -.
DR   SMR; A6VSA9; -.
DR   STRING; 400668.Mmwyl1_0400; -.
DR   EnsemblBacteria; ABR69338; ABR69338; Mmwyl1_0400.
DR   KEGG; mmw:Mmwyl1_0400; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_004588_3_0_6; -.
DR   OMA; FGQGERT; -.
DR   OrthoDB; 840579at2; -.
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   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..558
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_0000406877"
FT   DOMAIN          31..305
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   558 AA;  62960 MW;  2774B7321E741F2D CRC64;
     MLTQPSIKYR PAQIIDFPAR TWPSKQLKTP PRWCSTDLRD GNQALANPMD HVKKMAFFKH
     LIECGFKEIE VAFPAASQTD FDFVRLLIEG KHIPDDVTIQ VMTQSRVDLI ERTIQSLVGA
     KKAIVHIYNA TAPVFREIVF CQDKPATLEL AVQGVKHIRQ LCEQYPDTQW TLQYSPETFC
     FTEPDFALEV CEAAAKTWQP SLERPMILNL PTTVEVNTPN VFADQIEHFI TSFSSLENIT
     ISVHPHNDRG TGVATAEMAI LAGAQRVEGC LFGNGERTGN VDLVTLAMNL YSQGVYPNLD
     FSDMRRTVEL VEECNELPVH PRHPYAGALA FTAFSGSHQD AIKKGFASQK STSSMIWQIP
     YLPLDPKDIG CTYEEVIRVN SQSGKSGAAW LLQENHGLFL PRKLQIDFSK KVKNHTDQTG
     HEMPLADVWR LFRESYRLNP DDKGQMKLMD YRSHSSNGLQ EIRATLRYQE KTWQLVGEGK
     GLLSAMLDAL RKRFNWQINI SDFHEHTLGQ QTKSKAVSYV QIESDQATPS FGVAIDEDST
     KASLQALINA CHPLYKEA