ID A0A2G2WFN7_CAPBA Unreviewed; 358 AA.
AC A0A2G2WFN7;
DT 31-JAN-2018, integrated into UniProtKB/TrEMBL.
DT 31-JAN-2018, sequence version 1.
DT 13-SEP-2023, entry version 20.
DE RecName: Full=Thiamine thiazole synthase, chloroplastic {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=THI1 {ECO:0000256|HAMAP-Rule:MF_03158};
GN ORFNames=CQW23_17965 {ECO:0000313|EMBL:PHT43940.1};
OS Capsicum baccatum (Peruvian pepper).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Solanales; Solanaceae; Solanoideae; Capsiceae; Capsicum.
OX NCBI_TaxID=33114 {ECO:0000313|EMBL:PHT43940.1, ECO:0000313|Proteomes:UP000224567};
RN [1] {ECO:0000313|EMBL:PHT43940.1, ECO:0000313|Proteomes:UP000224567}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. PBC81 {ECO:0000313|Proteomes:UP000224567};
RC TISSUE=Leaf {ECO:0000313|EMBL:PHT43940.1};
RX PubMed=29089032; DOI=10.1186/s13059-017-1341-9;
RA Kim S., Park J., Yeom S.I., Kim Y.M., Seo E., Kim K.T., Kim M.S., Lee J.M.,
RA Cheong K., Shin H.S., Kim S.B., Han K., Lee J., Park M., Lee H.A.,
RA Lee H.Y., Lee Y., Oh S., Lee J.H., Choi E., Choi E., Lee S.E., Jeon J.,
RA Kim H., Choi G., Song H., Lee J., Lee S.C., Kwon J.K., Lee H.Y., Koo N.,
RA Hong Y., Kim R.W., Kang W.H., Huh J.H., Kang B.C., Yang T.J., Lee Y.H.,
RA Bennetzen J.L., Choi D.;
RT "New reference genome sequences of hot pepper reveal the massive evolution
RT of plant disease-resistance genes by retroduplication.";
RL Genome Biol. 18:R210.1-R210.11(2017).
RN [2] {ECO:0000313|Proteomes:UP000224567}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. PBC81 {ECO:0000313|Proteomes:UP000224567};
RA Kim S., Park J., Yeom S.-I., Kim Y.-M., Seo E., Kim K.-T., Kim M.-S.,
RA Lee J.M., Cheong K., Shin H.-S., Kim S.-B., Han K., Lee J., Park M.,
RA Lee H.-A., Lee H.-Y., Lee Y., Oh S., Lee J.H., Choi E., Choi E., Lee S.E.,
RA Jeon J., Kim H., Choi G., Song H., Lee J., Lee S.-C., Kwon J.-K.,
RA Lee H.-Y., Koo N., Hong Y., Kim R.W., Kang W.-H., Huh J.H., Kang B.-C.,
RA Yang T.-J., Lee Y.-H., Bennetzen J.L., Choi D.;
RT "Multiple reference genome sequences of hot pepper reveal the massive
RT evolution of plant disease resistance genes by retroduplication.";
RL J. Anim. Genet. bioRxivorg:115410-115410(2017).
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: Plastid, chloroplast {ECO:0000256|HAMAP-
CC Rule:MF_03158}.
CC -!- PTM: During the catalytic reaction, a sulfide is transferred from Cys-
CC 225 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:PHT43940.1}.
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DR EMBL; MLFT02000007; PHT43940.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2G2WFN7; -.
DR STRING; 33114.A0A2G2WFN7; -.
DR Proteomes; UP000224567; Chromosome 7.
DR GO; GO:0009570; C:chloroplast stroma; IEA:UniProtKB-UniRule.
DR GO; GO:0005829; C:cytosol; IEA:UniProtKB-UniRule.
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 PRINTS; PR00419; ADXRDTASE.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
PE 3: Inferred from homology;
KW Chloroplast {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 Plastid {ECO:0000256|HAMAP-Rule:MF_03158};
KW Reference proteome {ECO:0000313|Proteomes:UP000224567};
KW Thiamine biosynthesis {ECO:0000256|ARBA:ARBA00022977, ECO:0000256|HAMAP-
KW Rule:MF_03158}; Transferase {ECO:0000256|HAMAP-Rule:MF_03158}.
FT BINDING 103
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 123..124
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 131
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 196
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 227
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 242
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 294
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT BINDING 304..306
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
FT MOD_RES 225
FT /note="2,3-didehydroalanine (Cys)"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03158"
SQ SEQUENCE 358 AA; 37986 MW; 8943C4E6346C5809 CRC64;
MATMASTLAS SVITKTNFLD TNKSSFYGVP ISSQTRLNLV KSVKQDVSVY ASVDSPLPPY
DLGSFSFNPI KESIVAREMT RRYMTDMITY ADTDVVIVGA GSAGLSCAYE LSKNPNVQVA
ILEQSVSPGG GAWLGGQLFS AMVVRKPAHL FLNELGIDYD EQDDYVVIKH AALFTSTIMS
KLLARPNVKL FNAVATEDLI VKNGRVGGVV TNWSLVSQNH DTQSCMDPNV MEAKVVVSSC
GHDGPMGATG VKRLRSIGMI NNVPGMKALD MNAAEDAIVR LTREVVPGMI VTGMEVAEID
GAPRMGPTFG AMMISGQKAA HLALRALGLP NALDGTAETS IHPDLILAAA DEAESADA
//
