ID G5JV99_9STRE Unreviewed; 567 AA.
AC G5JV99;
DT 25-JAN-2012, integrated into UniProtKB/TrEMBL.
DT 25-JAN-2012, sequence version 1.
DT 27-MAR-2024, entry version 58.
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 {ECO:0000313|EMBL:EHJ52502.1};
GN ORFNames=STRMA_1811 {ECO:0000313|EMBL:EHJ52502.1};
OS Streptococcus macacae NCTC 11558.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=764298 {ECO:0000313|EMBL:EHJ52502.1, ECO:0000313|Proteomes:UP000003573};
RN [1] {ECO:0000313|EMBL:EHJ52502.1, ECO:0000313|Proteomes:UP000003573}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCTC 11558 {ECO:0000313|EMBL:EHJ52502.1,
RC ECO:0000313|Proteomes:UP000003573};
RX PubMed=24625962; DOI=10.1093/gbe/evu048;
RA Richards V.P., Palmer S.R., Pavinski Bitar P.D., Qin X., Weinstock G.M.,
RA Highlander S.K., Town C.D., Burne R.A., Stanhope M.J.;
RT "Phylogenomics and the dynamic genome evolution of the genus
RT Streptococcus.";
RL Genome Biol. Evol. 6:741-753(2014).
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:EHJ52502.1}.
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DR EMBL; AEUW02000001; EHJ52502.1; -; Genomic_DNA.
DR RefSeq; WP_003080576.1; NZ_UHFV01000002.1.
DR AlphaFoldDB; G5JV99; -.
DR STRING; 764298.STRMA_1811; -.
DR eggNOG; COG0028; Bacteria.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000003573; 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:EHJ52502.1}.
FT DOMAIN 11..125
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 200..335
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 392..539
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 567 AA; 61929 MW; E1103346700BC8B5 CRC64;
MEKIQLENPK SGSDLLLDTL ENLGITTIFG YPGGAVLPLY DAIYKHHRIR HILARHEQGA
LHEAEGFAKS TGNIGVSVVT SGPGATNAIT GIADGMSDSV PMLIFTGQVA TPGIGKDAFQ
EADIIGITMP ITKYNYQIRN VADIPRIITE AVHIATTGRS GPVVIDLPKD ISDQKTDFYY
DTAVAVPGYQ PTIEPNNLQI KKILAQLKKA KKPLILAGGG VNYAGASSEL IAFAERYNIP
VVSTLLSLGV MPMAHRLSLG MGGMHGSYAA NMALTECDFL INFGSRFADR LTGNPKTFAK
NAVVAHVDID PAEIGKVVKT DIPVVGDAKQ ALKQLLEFDK VSTRHREWTE KVLENQAKAP
FSYKFDEQII KPQHAIEIVG RLTKGEAIVV TDVGQHQMWA AQFYPYQNER QIVTSGGLGT
MGFGIPAAIG AKLANPDKEV ILFVGDGGFQ MTNQELAILN GYGVPIKLIL INNHSLGMVR
QWQESFYDER RSESTFDDEP NFQYLAKAYG ISHYKFSDPL TLEKDLEVIL ENKPMLIEVN
ISDREHVYPM VPSGKSNAEM LGVTFNA
//
