ID A0A109FAZ6_9BASI Unreviewed; 362 AA.
AC A0A109FAZ6;
DT 13-APR-2016, integrated into UniProtKB/TrEMBL.
DT 13-APR-2016, sequence version 1.
DT 27-MAR-2024, entry version 26.
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=RHOSPDRAFT_27817 {ECO:0000313|EMBL:KWU41155.1};
OS Rhodotorula sp. JG-1b.
OC Eukaryota; Fungi; Dikarya; Basidiomycota; Pucciniomycotina;
OC Microbotryomycetes; Sporidiobolales; Sporidiobolaceae; Rhodotorula.
OX NCBI_TaxID=1305733 {ECO:0000313|EMBL:KWU41155.1, ECO:0000313|Proteomes:UP000062823};
RN [1] {ECO:0000313|EMBL:KWU41155.1, ECO:0000313|Proteomes:UP000062823}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JG-1b {ECO:0000313|EMBL:KWU41155.1,
RC ECO:0000313|Proteomes:UP000062823};
RG DOE Joint Genome Institute;
RA Goordial J., Raymond-Bouchard I., Riley R., Ronholm J., Shapiro N.,
RA Woyke T., Grigoriev I.V., Labutti K.M., Greer C., Whyte L., Bakermans C.;
RT "Draft genome of eurypsychrophile Rhodotorula sp. JG1b isolated from
RT permafrost in the hyper-arid Upper Elevation McMurdo Dry Valleys,
RT Antarctica.";
RL Submitted (DEC-2015) 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 232 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; KQ954555; KWU41155.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A109FAZ6; -.
DR STRING; 1305733.A0A109FAZ6; -.
DR OrthoDB; 1382331at2759; -.
DR Proteomes; UP000062823; 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:0016705; F:oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen; IEA:UniProt.
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}; NAD {ECO:0000256|HAMAP-Rule:MF_03158};
KW Nucleus {ECO:0000256|HAMAP-Rule:MF_03158};
KW Reference proteome {ECO:0000313|Proteomes:UP000062823};
KW Thiamine biosynthesis {ECO:0000256|ARBA:ARBA00022977, ECO:0000256|HAMAP-
KW Rule:MF_03158}; Transferase {ECO:0000256|HAMAP-Rule:MF_03158}.
FT BINDING 100
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 121..122
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 129
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 194
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 234
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 249
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 301
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 311..313
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT MOD_RES 232
FT /note="2,3-didehydroalanine (Cys)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
SQ SEQUENCE 362 AA; 38704 MW; 369C4FC3E403E0B2 CRC64;
MAATYTGFKS SVAAAAEHVK PTVAQTLTKH AELPLSPPSS AGSDVDAAEF EKRYTEDWNG
QYRFAPIKEH IVSRAMTSRY GKDLYDTAIS DVVIVGAGSA GLSAAYTLAK ERPDLRITIL
EAAVAPGGGA WVGGQLMSAM VVRKPAHHFL QEVRVPFEDE GDYVVVKHAA LFTSTVLSKV
LQFPNVKLFN AVAVEDLITR PDVLADEPGK VRVSGVVTNW TLATLAHGLQ SCMDPNVIVA
PIVLSFAGHD GPFGAFCVKR LVATGHLEAL GNMRTLDMRS AEDAIVNQTR EIFPGIITGG
MELSELDGAS RMGPTFGAMM ASGVKAAKTA IQLLDRLEIE EGEVVGWKKD AWKKDAEAGL
QL
//
