ID G8UNX7_TANFA Unreviewed; 495 AA.
AC G8UNX7;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 68.
DE RecName: Full=2-isopropylmalate synthase {ECO:0000256|ARBA:ARBA00018198, ECO:0000256|HAMAP-Rule:MF_01025};
DE EC=2.3.3.13 {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_01025};
DE AltName: Full=Alpha-IPM synthase {ECO:0000256|HAMAP-Rule:MF_01025};
DE AltName: Full=Alpha-isopropylmalate synthase {ECO:0000256|HAMAP-Rule:MF_01025};
GN Name=leuA {ECO:0000256|HAMAP-Rule:MF_01025,
GN ECO:0000313|EMBL:AEW21804.1};
GN OrderedLocusNames=BFO_0819 {ECO:0000313|EMBL:AEW21804.1};
OS Tannerella forsythia (strain ATCC 43037 / JCM 10827 / CCUG 21028 A / KCTC
OS 5666 / FDC 338) (Bacteroides forsythus).
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Tannerellaceae;
OC Tannerella.
OX NCBI_TaxID=203275 {ECO:0000313|EMBL:AEW21804.1, ECO:0000313|Proteomes:UP000005436};
RN [1] {ECO:0000313|Proteomes:UP000005436}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43037 / JCM 10827 / CCUG 33226 / KCTC 5666 / FDC 338
RC {ECO:0000313|Proteomes:UP000005436};
RA Dewhirst F., Tanner A., Izard J., Brinkac L., Durkin A.S., Hostetler J.,
RA Shetty J., Torralba M., Gill S., Nelson K.;
RT "Complete sequence of Tannerella forsythia ATCC 43037.";
RL Submitted (DEC-2011) 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_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:0000256|HAMAP-Rule:MF_01025};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01025};
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_01025}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01025}.
CC -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC family. LeuA type 1 subfamily. {ECO:0000256|ARBA:ARBA00009396,
CC ECO:0000256|HAMAP-Rule:MF_01025}.
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DR EMBL; CP003191; AEW21804.1; -; Genomic_DNA.
DR RefSeq; WP_014224254.1; NC_016610.1.
DR AlphaFoldDB; G8UNX7; -.
DR STRING; 203275.BFO_0819; -.
DR GeneID; 34758133; -.
DR KEGG; tfo:BFO_0819; -.
DR PATRIC; fig|203275.8.peg.732; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_022158_0_1_10; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000005436; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-UniRule.
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:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd07940; DRE_TIM_IPMS; 1.
DR Gene3D; 1.10.238.260; -; 1.
DR Gene3D; 3.30.160.270; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 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 NCBIfam; TIGR00973; leuA_bact; 1.
DR PANTHER; PTHR10277:SF9; 2-ISOPROPYLMALATE SYNTHASE 1, CHLOROPLASTIC-RELATED; 1.
DR PANTHER; PTHR10277; HOMOCITRATE SYNTHASE-RELATED; 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 PROSITE; PS00815; AIPM_HOMOCIT_SYNTH_1; 1.
DR PROSITE; PS50991; PYR_CT; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000313|EMBL:AEW21804.1};
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01025};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_01025};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01025};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430, ECO:0000256|HAMAP-
KW Rule:MF_01025};
KW Manganese {ECO:0000256|ARBA:ARBA00023211, ECO:0000256|HAMAP-Rule:MF_01025};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01025}; Reference proteome {ECO:0000313|Proteomes:UP000005436};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01025}.
FT DOMAIN 4..264
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 386..495
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 13
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 200
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 202
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 236
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
SQ SEQUENCE 495 AA; 54038 MW; 41222F25E0243AE2 CRC64;
MEQIYVFDTT LRDGEQVPGC QLNTIEKIQV AKALELLGVD VIEAGFPVSS PGDFNSVVEI
SKAVTWPVIC ALTRAVKKDI EMAAESLKHA KRKRIHTGIG TSDMHIKHKF NSNREEIIER
AVKAVKFARR FVDDVEFYAE DAGRTDNEYL ARVVQAVVNA GATVINIPDT TGYCFPHQYG
AKIKYLIDHV DLKEAILSTH CHQDLGMATA NTLTGVLNGA RQVEVTVNGI GERAGNTSLE
EVVMALKSHR ELGLETNINT TKIHSTSRLV SALMNMPVQP NKAIVGRNAF AHSSGIHQDG
VLKNTDTYEI IDPKEVGIDD NAIVLTARSG RAALKNRLSL LGVDLDNGKL DDVYQKFLAL
ADRKKDIKDD DVLALAGIES RLNRIKIDYL QVTCGVGLRH VASIGLNIAG EHFEASATGN
GPVDAAIKAV KKIISREMVI QEFLIQAINR GSDDVGKVHM QVAHNGMLYY GFSANTDIVS
ASVEAFIDAV NKFVE
//
