ID LEU12_BACP2 Reviewed; 553 AA.
AC A8FAK7;
DT 05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT 13-NOV-2007, sequence version 1.
DT 27-MAR-2024, entry version 87.
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=BPUM_0582;
OS Bacillus pumilus (strain SAFR-032).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX NCBI_TaxID=315750;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SAFR-032;
RX PubMed=17895969; DOI=10.1371/journal.pone.0000928;
RA Gioia J., Yerrapragada S., Qin X., Jiang H., Igboeli O.C., Muzny D.,
RA Dugan-Rocha S., Ding Y., Hawes A., Liu W., Perez L., Kovar C., Dinh H.,
RA Lee S., Nazareth L., Blyth P., Holder M., Buhay C., Tirumalai M.R., Liu Y.,
RA Dasgupta I., Bokhetache L., Fujita M., Karouia F., Eswara Moorthy P.,
RA Siefert J., Uzman A., Buzumbo P., Verma A., Zwiya H., McWilliams B.D.,
RA Olowu A., Clinkenbeard K.D., Newcombe D., Golebiewski L., Petrosino J.F.,
RA Nicholson W.L., Fox G.E., Venkateswaran K., Highlander S.K.,
RA Weinstock G.M.;
RT "Paradoxical DNA repair and peroxide resistance gene conservation in
RT Bacillus pumilus SAFR-032.";
RL PLoS ONE 2:E928-E928(2007).
CC -!- FUNCTION: Catalyzes the condensation of the acetyl group of acetyl-CoA
CC with 3-methyl-2-oxobutanoate (2-ketoisovalerate) 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 -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
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: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00572}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {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; CP000813; ABV61274.1; -; Genomic_DNA.
DR RefSeq; WP_012009125.1; NZ_VEIA01000005.1.
DR AlphaFoldDB; A8FAK7; -.
DR SMR; A8FAK7; -.
DR STRING; 315750.BPUM_0582; -.
DR KEGG; bpu:BPUM_0582; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_004588_3_2_9; -.
DR OrthoDB; 9804858at2; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000001355; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003852; F:2-isopropylmalate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003985; F:acetyl-CoA C-acetyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd07942; DRE_TIM_LeuA; 1.
DR Gene3D; 3.30.160.270; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 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 PANTHER; PTHR46911; -; 1.
DR PANTHER; PTHR46911:SF1; 2-ISOPROPYLMALATE SYNTHASE; 1.
DR Pfam; PF00682; HMGL-like; 1.
DR Pfam; PF08502; LeuA_dimer; 1.
DR SMART; SM00917; LeuA_dimer; 1.
DR SUPFAM; SSF110921; 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain; 1.
DR SUPFAM; SSF51569; Aldolase; 1.
DR SUPFAM; SSF89000; post-HMGL domain-like; 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; Cytoplasm;
KW Leucine biosynthesis; Magnesium; Metal-binding; Transferase.
FT CHAIN 1..553
FT /note="2-isopropylmalate synthase"
FT /id="PRO_0000406870"
FT DOMAIN 31..304
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
FT REGION 439..553
FT /note="Regulatory domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
FT BINDING 40
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
FT BINDING 243
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
FT BINDING 245
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
FT BINDING 279
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00572"
SQ SEQUENCE 553 AA; 63211 MW; DBA1F2B00E52DDF2 CRC64;
MFNHKKYEKK YFLPPNLTYD WVKNETLESA PIWCSVDLRD GNQALPIPMN LEEKLEMFQL
LVEIGFKEIE IAFPAASDTE FRLLRTLIDH HMIPDDVTIM VITQAREHII RRTFEAIKGV
PKAIVHLYNS TSEAQRRQVF KKTKDEVKQM AMDGAILVKE LAEKTESDIY FQYSPESFPG
TEVDYALDIC NSVLDIWKPT PNHKAIINIP TTVEYSMPHI FASQIEYIHK NLSYRDSVTL
SVHPHNDRGS GVSDAEFGVL AGAERVEGTL FGIGERTGNV DLITLAMNMY SQGYDPKLNF
NNLEAIRKQY EKLTNITVHE RQPYSGEMVF TAFSGSHQDA ISKGMKYRKE HHVDKWDVPY
IPVDPVDLGR NYQTDVIRIN SQSGKGGIGY ILETNYGIQL PYQMNEAMGY EAKKVSDQSN
RELSVEEIYH VFEKQYVDFH PHFQLLDYQF HKGEKQEVTL TLLRDHQQID IQGTGTGSLD
AISNALKAYF HLEYDLEVYE QNSLGKDSQA KACAQIGISH QGKMHWGAGI DKDIIEATVK
ALVVAVNRLE VWM
//
