ID A0A0G0G1Y3_9BACT Unreviewed; 560 AA.
AC A0A0G0G1Y3;
DT 22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2015, sequence version 1.
DT 24-JAN-2024, entry version 40.
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 ORFNames=US40_C0020G0002 {ECO:0000313|EMBL:KKQ24012.1};
OS Candidatus Roizmanbacteria bacterium GW2011_GWC2_37_13.
OC Bacteria; Candidatus Roizmanbacteria.
OX NCBI_TaxID=1618486 {ECO:0000313|EMBL:KKQ24012.1, ECO:0000313|Proteomes:UP000034917};
RN [1] {ECO:0000313|EMBL:KKQ24012.1, ECO:0000313|Proteomes:UP000034917}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Brown C.T., Hug L.A., Thomas B.C., Sharon I., Castelle C.J., Singh A.,
RA Wilkins M.J., Williams K.H., Banfield J.F.;
RT "rRNA introns, odd ribosomes, and small enigmatic genomes across a large
RT radiation of phyla.";
RL Nature 0:0-0(2015).
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|ARBA:ARBA00000673,
CC 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:KKQ24012.1}.
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DR EMBL; LBSV01000020; KKQ24012.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0G0G1Y3; -.
DR PATRIC; fig|1618486.3.peg.1039; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000034917; 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, CHLOROPLASTIC; 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}; FAD {ECO:0000256|ARBA:ARBA00022827};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630};
KW 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}.
FT DOMAIN 4..119
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 194..329
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 389..536
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 560 AA; 62485 MW; 48EC9B5D9C91AE22 CRC64;
MKYTGAEILM RSLLQEKVEV IFGYPGGANM PIYDALYFYG KKFRHILVRH EQGAAHAAEG
YARVTGKPGV CLVTSGPGAT NLVTGIADAM MDSVPMVCIT GQVAAEFLGS DAFQEADVVG
ITTPITKWNC QLTHAEEIPE AIAKAFYIAS HGRPGPVVID ITKNAQFEKA EFKYPKNFYV
KKLKTVNKFN SGDIKKAAEI INKAKKPLML VGHGVLISKA EKEVLQVIEK TGMVAASTLH
GLSSIPFDHP LYVGMIGMHG NYSPNKLTNS ADVILAVGMR FDDRVTGKLS EYVPKAKVIH
IDIDESEHHK NVRAHFPLLG NVKDVLKSLM PYLKKNNHDE WLGDFKELDK KELEFEKIRQ
QKNKNKITMN VVLSLLSEKT KNEAVIVADV GQNQMFSARY YKYKNPDSYI TSGGLGTMGF
ALPATMGAKV GAPKRLVFAV IGDGGFQMTI QELGTIMQEK MPIKILLLNN EYLGMVRQWQ
QLFFEKRYSF THMQNPDFIN IAKSYGIKGE QVMERKKLEI ALDRFINFQG PYLLEVKVEK
EDNIFPMVAT GTSVDDVRLE
//