ID A0A0U1KVV5_9FIRM Unreviewed; 662 AA.
AC A0A0U1KVV5;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 27-MAR-2024, entry version 44.
DE RecName: Full=2-isopropylmalate synthase {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_00572};
DE EC=2.3.3.13 {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_00572};
DE AltName: Full=Alpha-IPM synthase {ECO:0000256|HAMAP-Rule:MF_00572};
DE AltName: Full=Alpha-isopropylmalate synthase {ECO:0000256|HAMAP-Rule:MF_00572};
GN Name=leuA {ECO:0000256|HAMAP-Rule:MF_00572};
GN ORFNames=SpAn4DRAFT_2021 {ECO:0000313|EMBL:CQR71043.1};
OS Sporomusa ovata.
OC Bacteria; Bacillota; Negativicutes; Selenomonadales; Sporomusaceae;
OC Sporomusa.
OX NCBI_TaxID=2378 {ECO:0000313|EMBL:CQR71043.1, ECO:0000313|Proteomes:UP000049855};
RN [1] {ECO:0000313|Proteomes:UP000049855}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Nijsse Bart;
RL Submitted (MAR-2015) 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-ketoisovalerate) to form 3-carboxy-3-
CC hydroxy-4-methylpentanoate (2-isopropylmalate). {ECO:0000256|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:0000256|ARBA:ARBA00000064, ECO:0000256|HAMAP-
CC Rule:MF_00572};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00572};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 1/4. {ECO:0000256|ARBA:ARBA00004689,
CC ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC family. LeuA type 2 subfamily. {ECO:0000256|ARBA:ARBA00009767,
CC ECO:0000256|HAMAP-Rule:MF_00572}.
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DR EMBL; CTRP01000003; CQR71043.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0U1KVV5; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000049855; Unassembled WGS sequence.
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:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
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 Gene3D; 1.10.10.60; Homeodomain-like; 2.
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; IPR009057; Homeobox-like_sf.
DR InterPro; IPR018060; HTH_AraC.
DR InterPro; IPR018062; HTH_AraC-typ_CS.
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 InterPro; IPR020449; Tscrpt_reg_HTH_AraC-type.
DR PANTHER; PTHR46911; -; 1.
DR PANTHER; PTHR46911:SF1; 2-ISOPROPYLMALATE SYNTHASE; 1.
DR Pfam; PF00682; HMGL-like; 1.
DR Pfam; PF12833; HTH_18; 1.
DR Pfam; PF08502; LeuA_dimer; 1.
DR PRINTS; PR00032; HTHARAC.
DR SMART; SM00342; HTH_ARAC; 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; SSF46689; Homeodomain-like; 1.
DR SUPFAM; SSF89000; post-HMGL domain-like; 1.
DR PROSITE; PS00815; AIPM_HOMOCIT_SYNTH_1; 1.
DR PROSITE; PS00041; HTH_ARAC_FAMILY_1; 1.
DR PROSITE; PS01124; HTH_ARAC_FAMILY_2; 1.
DR PROSITE; PS50991; PYR_CT; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000313|EMBL:CQR71043.1};
KW Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00572};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_00572};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00572};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125};
KW Leucine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00572};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00572};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00572}; Reference proteome {ECO:0000313|Proteomes:UP000049855};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00572}.
FT DOMAIN 31..304
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT DOMAIN 564..661
FT /note="HTH araC/xylS-type"
FT /evidence="ECO:0000259|PROSITE:PS01124"
FT REGION 439..662
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 40
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 243
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 245
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 279
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
SQ SEQUENCE 662 AA; 75296 MW; 3307827FF92B060B CRC64;
MKNFEKYERA YFMPPQVSYD WVRKDHIDAP PIWCSVDLRD GNQALIEPMS LEEKIEFFQM
LVAIGFKEIE VGFPAASDTE YNFLRALIER NMIPEDVTIQ VLTQAREHII KKTFEAVKGA
PHAVIHLYNS TSVAQREQVF RKSKEEIKRI AVDGAELLKN LAEETTGNFS FQYSPESFPG
TEVDYALEIC NAVLDVWQPN PDKKAIINLP TTVENAMPHV FASQVEFMNK NLKYRNSIIL
CLHPHNDRGC GVCDAELGML AGADRIEGTL FGNGERTGNV DIITLAMNLF SHGVDPKLDF
SNMPEICQKY ENLTRMQVHA RQPYAGELVF TAFSGSHQDA IAKGMNYRSE KKTNQWSVPY
LPIDPKDVGR EYDSDVIRIN SQSGKGGIGY ILKENYGMSI PAKMKEDVGY TVKGVSDREH
KELSPEWVYQ IFEDKYMNNT PYFHIEEFRF KQIDGIMAQV TINHNGQVRT IVGNGNGRLD
AVSNAIKQYF DVHYELAIYE EHAHSKGSSS KAVSYVGVSC NNKLYWGVGI DDDIINSSIN
ALVVAVNQLD EIQAEDKCRD ERINQIINYI QTNYLTVTLV ELSDQMHLSI PYLSKYIKEK
SGGTFGEIVR NVRMKKACTF LKNGNMTVEK IADSVGYQNV EHFNRLFKKK YGMTPVQFRN
KK
//
