ID C7GSX8_YEAS2 Unreviewed; 326 AA.
AC C7GSX8;
DT 13-OCT-2009, integrated into UniProtKB/TrEMBL.
DT 13-OCT-2009, sequence version 1.
DT 27-MAR-2024, entry version 52.
DE RecName: Full=Thiamine thiazole synthase {ECO:0000256|HAMAP-Rule:MF_03158};
DE AltName: Full=Thiazole biosynthetic enzyme {ECO:0000256|HAMAP-Rule:MF_03158};
DE EC=2.4.2.60 {ECO:0000256|HAMAP-Rule:MF_03158};
GN Name=THI4 {ECO:0000256|HAMAP-Rule:MF_03158,
GN ECO:0000313|EMBL:EEU06093.1};
GN ORFNames=C1Q_03495 {ECO:0000313|EMBL:EEU06093.1};
OS Saccharomyces cerevisiae (strain JAY291) (Baker's yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=574961 {ECO:0000313|EMBL:EEU06093.1, ECO:0000313|Proteomes:UP000008073};
RN [1] {ECO:0000313|EMBL:EEU06093.1, ECO:0000313|Proteomes:UP000008073}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JAY291 {ECO:0000313|EMBL:EEU06093.1,
RC ECO:0000313|Proteomes:UP000008073};
RX PubMed=19812109; DOI=10.1101/gr.091777.109;
RA Argueso J.L., Carazzolle M.F., Mieczkowski P.A., Duarte F.M., Netto O.V.,
RA Missawa S.K., Galzerani F., Costa G.G., Vidal R.O., Noronha M.F.,
RA Dominska M., Andrietta M.G., Andrietta S.R., Cunha A.F., Gomes L.H.,
RA Tavares F.C., Alcarde A.R., Dietrich F.S., McCusker J.H., Petes T.D.,
RA Pereira G.A.;
RT "Genome structure of a Saccharomyces cerevisiae strain widely used in
RT bioethanol production.";
RL Genome Res. 19:2258-2270(2009).
CC -!- FUNCTION: Involved in biosynthesis of the thiamine precursor thiazole.
CC Catalyzes the conversion of NAD and glycine to adenosine diphosphate 5-
CC (2-hydroxyethyl)-4-methylthiazole-2-carboxylic acid (ADT), an
CC adenylated thiazole intermediate. The reaction includes an iron-
CC dependent sulfide transfer from a conserved cysteine residue of the
CC protein to a thiazole intermediate. The enzyme can only undergo a
CC single turnover, which suggests it is a suicide enzyme. May have
CC additional roles in adaptation to various stress conditions and in DNA
CC damage tolerance. {ECO:0000256|HAMAP-Rule:MF_03158}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[ADP-thiazole synthase]-L-cysteine + glycine + NAD(+) = [ADP-
CC thiazole synthase]-dehydroalanine + ADP-5-ethyl-4-methylthiazole-2-
CC carboxylate + 2 H(+) + 3 H2O + nicotinamide; Xref=Rhea:RHEA:55708,
CC Rhea:RHEA-COMP:14264, Rhea:RHEA-COMP:14265, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17154, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:57305, ChEBI:CHEBI:57540, ChEBI:CHEBI:90873,
CC ChEBI:CHEBI:139151; EC=2.4.2.60; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03158};
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03158};
CC Note=Binds 1 Fe cation per subunit. {ECO:0000256|HAMAP-Rule:MF_03158};
CC -!- SUBUNIT: Homooctamer. {ECO:0000256|HAMAP-Rule:MF_03158}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03158}.
CC Nucleus {ECO:0000256|HAMAP-Rule:MF_03158}.
CC -!- PTM: During the catalytic reaction, a sulfide is transferred from Cys-
CC 205 to a reaction intermediate, generating a dehydroalanine residue.
CC {ECO:0000256|HAMAP-Rule:MF_03158}.
CC -!- SIMILARITY: Belongs to the THI4 family. {ECO:0000256|HAMAP-
CC Rule:MF_03158}.
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:EEU06093.1}.
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DR EMBL; ACFL01000224; EEU06093.1; -; Genomic_DNA.
DR AlphaFoldDB; C7GSX8; -.
DR SMR; C7GSX8; -.
DR Proteomes; UP000008073; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IEA:UniProtKB-UniRule.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016763; F:pentosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009228; P:thiamine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0052837; P:thiazole biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 6.10.250.2840; -; 1.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 1.
DR HAMAP; MF_03158; THI4; 1.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR027495; Sti35.
DR InterPro; IPR002922; Thi4_fam.
DR NCBIfam; TIGR00292; sulfide-dependent adenosine diphosphate thiazole synthase; 1.
DR PANTHER; PTHR43422; THIAMINE THIAZOLE SYNTHASE; 1.
DR PANTHER; PTHR43422:SF3; THIAMINE THIAZOLE SYNTHASE; 1.
DR Pfam; PF01946; Thi4; 1.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03158};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_03158};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03158};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_03158};
KW Nucleus {ECO:0000256|HAMAP-Rule:MF_03158};
KW Thiamine biosynthesis {ECO:0000256|ARBA:ARBA00022977, ECO:0000256|HAMAP-
KW Rule:MF_03158}; Transferase {ECO:0000256|HAMAP-Rule:MF_03158}.
FT BINDING 76
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 97..98
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 105
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 170
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 207
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 237
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 291
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 301..303
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT MOD_RES 205
FT /note="2,3-didehydroalanine (Cys)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
SQ SEQUENCE 326 AA; 34991 MW; 843790F2CE00BF02 CRC64;
MSATSTATST SASQLHLNST PVTHCLSDIV KKEDWSDFKF APIRESTVSR AMTSRYFKDL
DKFAVSDVII VGAGSSGLSA AYVIAKNRPD LKVCIIESSV APGGGSWLGG QLFSAMVMRK
PAHLFLQELE IPYEDEGDYV VVKHAALFIS TVLSKVLQLP NVKLFNATCV EDLVTRPPTE
KGEVTVAGVV TNWTLVTQAH GTQCCMDPNV IELAGYKNDG TRDLSQKHGV ILSTTGHDGP
FGAFCAKRIV DIDQNQKLGG MKGLDMNHAE HDVVIHSGAY AGVDNMYFAG MEVAELDGLN
RMGPTFGAMA LSGVHAAEQI LKHFAA
//
