ID B8N4L2_ASPFN Unreviewed; 327 AA.
AC B8N4L2;
DT 03-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 03-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 72.
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 ORFNames=AFLA_037160 {ECO:0000313|EMBL:EED56443.1}, G4B84_002882
GN {ECO:0000313|EMBL:QMW27593.1};
OS Aspergillus flavus (strain ATCC 200026 / FGSC A1120 / IAM 13836 / NRRL 3357
OS / JCM 12722 / SRRC 167).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC Aspergillus subgen. Circumdati.
OX NCBI_TaxID=332952 {ECO:0000313|EMBL:EED56443.1, ECO:0000313|Proteomes:UP000001875};
RN [1] {ECO:0000313|EMBL:EED56443.1, ECO:0000313|Proteomes:UP000001875}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 200026 / FGSC A1120 / IAM 13836 / NRRL 3357 / JCM 12722 /
RC SRRC 167 {ECO:0000313|Proteomes:UP000001875}, and NRRL3357
RC {ECO:0000313|EMBL:EED56443.1};
RX PubMed=25883274; DOI=10.1128/genomeA.00168-15;
RA Nierman W.C., Yu J., Fedorova-Abrams N.D., Losada L., Cleveland T.E.,
RA Bhatnagar D., Bennett J.W., Dean R., Payne G.A.;
RT "Genome sequence of Aspergillus flavus NRRL 3357, a strain that causes
RT aflatoxin contamination of food and feed.";
RL Genome Announc. 3:E0016815-E0016815(2015).
RN [2] {ECO:0000313|EMBL:QMW27593.1, ECO:0000313|Proteomes:UP000515286}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NRRL3357 {ECO:0000313|EMBL:QMW27593.1,
RC ECO:0000313|Proteomes:UP000515286};
RA Fountain J.C., Clevenger J.P., Nadon B., Youngblood R.C., Korani W.,
RA Chang P.-K., Starr D., Wang H., Isett B., Johnston H.R., Wiggins R.,
RA Chu Y., Agarwal G., Kemerait R.C., Pandey M.K., Bhatnagar D.,
RA Ozias-Akins P., Varshney R.K., Scheffler B.E., Vaughn J.N., Guo B.;
RT "Two New Chromosome-Level Aspergillus flavus Reference Genomes Reveal a
RT Large Insertion Potentially Contributing to Isolate Stress Tolerance and
RT Aflatoxin Production.";
RL Submitted (JUL-2020) to the EMBL/GenBank/DDBJ databases.
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 216 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}.
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DR EMBL; EQ963473; EED56443.1; -; Genomic_DNA.
DR EMBL; CP059867; QMW27593.1; -; Genomic_DNA.
DR RefSeq; XP_002375225.1; XM_002375184.1.
DR AlphaFoldDB; B8N4L2; -.
DR STRING; 332952.B8N4L2; -.
DR EnsemblFungi; EED56443; EED56443; AFLA_037160.
DR VEuPathDB; FungiDB:AFLA_001605; -.
DR eggNOG; KOG2960; Eukaryota.
DR HOGENOM; CLU_053727_0_0_1; -.
DR OMA; MFPRIVV; -.
DR OrthoDB; 1382331at2759; -.
DR Proteomes; UP000001875; Unassembled WGS sequence.
DR Proteomes; UP000515286; Chromosome 2.
DR GO; GO:0005829; C:cytosol; IEA:UniProtKB-UniRule.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0008198; F:ferrous iron binding; IEA:EnsemblFungi.
DR GO; GO:0016763; F:pentosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000002; P:mitochondrial genome maintenance; IEA:EnsemblFungi.
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 86
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 107..108
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 115
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 182
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 218
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 233
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 285
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 295..297
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT MOD_RES 216
FT /note="2,3-didehydroalanine (Cys)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
SQ SEQUENCE 327 AA; 35109 MW; E5EBA8A3FF2F053D CRC64;
MSPPAAIYEP TVAATGLKGK VVVPETVPVE GASQTKLLDH FGGKWDEFKF APIRESQVSR
AMTRRYFEDL DKYAESDVVI VGAGSCGLST AYVLAKARPD LKIAIVEASV SPGGGAWLGG
QLFSAMVMRR PAEVFLNELG VPYEEDANPN YVVVKHASLF TSTLMSKVLS FPNVKLFNAT
AVEDLITRPT ENGNPQIAGV VVNWTLVTLH HDDHSCMDPN TINAPVIIST TGHDGPFGAF
CAKRLVSMGS VDKLGGMRGL DMNSAEDAIV KNTREVTKGL IIGGMELSEI DGFNRMGPTF
GAMVLSGVKA AEEALKVFDE RQRECAE
//
