ID B5VPN3_YEAS6 Unreviewed; 687 AA.
AC B5VPN3;
DT 25-NOV-2008, integrated into UniProtKB/TrEMBL.
DT 25-NOV-2008, sequence version 1.
DT 27-MAR-2024, entry version 76.
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=AWRI1631_132500 {ECO:0000313|EMBL:EDZ70109.1};
OS Saccharomyces cerevisiae (strain AWRI1631) (Baker's yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=545124 {ECO:0000313|EMBL:EDZ70109.1, ECO:0000313|Proteomes:UP000008988};
RN [1] {ECO:0000313|EMBL:EDZ70109.1, ECO:0000313|Proteomes:UP000008988}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AWRI1631 {ECO:0000313|EMBL:EDZ70109.1,
RC ECO:0000313|Proteomes:UP000008988};
RX PubMed=18778279; DOI=10.1111/j.1567-1364.2008.00434.x;
RA Borneman A.R., Forgan A.H., Pretorius I.S., Chambers P.J.;
RT "Comparative genome analysis of a Saccharomyces cerevisiae wine strain.";
RL FEMS Yeast Res. 8:1185-1195(2008).
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:EDZ70109.1}.
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DR EMBL; ABSV01001822; EDZ70109.1; -; Genomic_DNA.
DR AlphaFoldDB; B5VPN3; -.
DR SMR; B5VPN3; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000008988; 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}.
FT DOMAIN 93..207
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 289..431
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 496..643
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
FT REGION 43..68
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 687 AA; 74937 MW; B03C4D0F38AA1362 CRC64;
MIRQSTLKNF AIKRCFQHIA YRNTPAMRSV ALAQRFYSSS SRYYSASPLP ASKRPEPAPS
FNVDPLEQPA EPSKLAKKLR AEPDMDTSFV GLTGGQIFNE MMSRQNVDTV FGYPGGAILP
VYDAIHNSDK FNFVLPKHEQ GAGHMAEGYA RASGKPGVVL VTSGPGATNV VTPMADAFAD
GIPMVVFTGQ VPTSAIGTDA FQEADVVGIS RSCTKWNVMV KSVEELPLRI NEAFEIATSG
RPGPVLVDLP KDVTAAILRN PIPTKTTLPS NALNQLTSRA QDEFVMQSIN KAADLINLAK
KPVLYVGAGI LNHADGPRLL KELSDRAQIP VTTTLQGLGS FDQEDPKSLD MLGMHGCATA
NLAVQNADLI IAVGARFDDR VTGNISKFAP EARRAAAEGR GGIIHFEVSP KNINKVVQTQ
IAVEGDATTN LGKMMSKIFP VKERSEWFAQ INKWKKEYPY AYMEETPGSK IKPQTVIKKL
SKVANDTGRH VIVTTGVGQH QMWAAQHWTW RNPHTFITSG GLGTMGYGLP AAIGAQVAKP
ESLVIDIDGD ASFNMTLTEL SSAVQAGTPV KILILNNEEQ GMVTQWQSLF YEHRYSHTHQ
LNPDFIKLAE AMGLKGLRVK KQEELDAKLK EFVSTKGPVL LEVEVDKKVP VLPMVAGGSG
LDEFINFDPE VERQQTELRH KRTGGKH
//
