ID W3Y0I4_9FIRM Unreviewed; 569 AA.
AC W3Y0I4;
DT 19-MAR-2014, integrated into UniProtKB/TrEMBL.
DT 19-MAR-2014, sequence version 1.
DT 27-MAR-2024, entry version 51.
DE RecName: Full=Acetolactate synthase {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
DE EC=2.2.1.6 {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
GN Name=ilvB_2 {ECO:0000313|EMBL:ETS91779.1};
GN ORFNames=HMPREF1521_1663 {ECO:0000313|EMBL:ETS91779.1};
OS Veillonella sp. AS16.
OC Bacteria; Bacillota; Negativicutes; Veillonellales; Veillonellaceae;
OC Veillonella.
OX NCBI_TaxID=936589 {ECO:0000313|EMBL:ETS91779.1, ECO:0000313|Proteomes:UP000019042};
RN [1] {ECO:0000313|EMBL:ETS91779.1, ECO:0000313|Proteomes:UP000019042}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AS16 {ECO:0000313|EMBL:ETS91779.1,
RC ECO:0000313|Proteomes:UP000019042};
RA Durkin A.S., McCorrison J., Torralba M., Gillis M., Haft D.H., Methe B.,
RA Sutton G., Nelson K.E.;
RL Submitted (JAN-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + 2 pyruvate = (2S)-2-acetolactate + CO2;
CC Xref=Rhea:RHEA:25249, ChEBI:CHEBI:15361, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16526, ChEBI:CHEBI:58476; EC=2.2.1.6;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU003591};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 1/4.
CC {ECO:0000256|ARBA:ARBA00004974, ECO:0000256|RuleBase:RU003591}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 1/4. {ECO:0000256|ARBA:ARBA00005025,
CC ECO:0000256|RuleBase:RU003591}.
CC -!- SIMILARITY: Belongs to the TPP enzyme family.
CC {ECO:0000256|ARBA:ARBA00007812, ECO:0000256|RuleBase:RU003591}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ETS91779.1}.
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DR EMBL; AZYX01000021; ETS91779.1; -; Genomic_DNA.
DR RefSeq; WP_038117859.1; NZ_AZYX01000021.1.
DR AlphaFoldDB; W3Y0I4; -.
DR PATRIC; fig|936589.3.peg.1535; -.
DR eggNOG; COG0028; Bacteria.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000019042; Unassembled WGS sequence.
DR GO; GO:0003984; F:acetolactate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd02015; TPP_AHAS; 1.
DR CDD; cd07035; TPP_PYR_POX_like; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR InterPro; IPR012846; Acetolactate_synth_lsu.
DR InterPro; IPR039368; AHAS_TPP.
DR InterPro; IPR029035; DHS-like_NAD/FAD-binding_dom.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR012000; Thiamin_PyroP_enz_cen_dom.
DR InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR InterPro; IPR000399; TPP-bd_CS.
DR InterPro; IPR045229; TPP_enz.
DR InterPro; IPR011766; TPP_enzyme_TPP-bd.
DR NCBIfam; TIGR00118; acolac_lg; 1.
DR PANTHER; PTHR18968:SF13; ACETOLACTATE SYNTHASE CATALYTIC SUBUNIT, MITOCHONDRIAL; 1.
DR PANTHER; PTHR18968; THIAMINE PYROPHOSPHATE ENZYMES; 1.
DR Pfam; PF02775; TPP_enzyme_C; 1.
DR Pfam; PF00205; TPP_enzyme_M; 1.
DR Pfam; PF02776; TPP_enzyme_N; 1.
DR SUPFAM; SSF52467; DHS-like NAD/FAD-binding domain; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR PROSITE; PS00187; TPP_ENZYMES; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|RuleBase:RU003591};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|RuleBase:RU003591}; Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:ETS91779.1}.
FT DOMAIN 7..122
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 201..336
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 393..541
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 569 AA; 61997 MW; C333D46F246EA94F CRC64;
MSAETINGAR IVLETLHRLG VTDMFGYPGG AVIPIYDEIY SFPEIKHYFV RHEQGAAHAA
DGYARVSGKI GVCLATSGPG ATNLVTGIMT AYMDSVPMVA ITGQVGRPFI GKDSFQEADI
QGITMPITKH NYLVQDIHNL PRIIKEAYFI AGTGRPGPVL IDIPKDIQTE TISLAEYNKL
YEVPISLEGY DPTYKGHQGQ IKKAATLIKN AKRPLIIAGA GILKANAMAE LKELAETAQI
PVTNTLVGLG GFPGNHELAL GMVGMHGSVA ANNCTDEADL VIAAGIRFHD RITGHPDFFC
KKAKIIHIDI DPAEIDKNVA IDVPIVGDLK HVLSDLNALV EPATHEPWLA QIREWQEEYP
MVVPEPDKDE LHPQYVLSEL NKIINDDAVI VTDVGQHQMW AAQFLTHKSP HTIVTSGGAG
TMGYGLPAAI GAQVGAPDKQ VILVVGDGGF QMTFEELMMV RQYNLPIKIV IINNGYLGMV
RQWQEIFNDR RYSYVDLEVS PDFLKLADAF GLKADRLDTV EALDKNFKRY ITSPGSIILD
CRVSREDNVL PMIPAGGTVS GMMGKKGVL
//
