THI4_SULIA
ID THI4_SULIA Reviewed; 267 AA.
AC C3N6N6;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-JUN-2009, sequence version 1.
DT 03-AUG-2022, entry version 69.
DE RecName: Full=Thiamine thiazole synthase {ECO:0000255|HAMAP-Rule:MF_00304};
DE EC=2.4.2.59 {ECO:0000255|HAMAP-Rule:MF_00304};
GN Name=thi4 {ECO:0000255|HAMAP-Rule:MF_00304}; OrderedLocusNames=M1627_1786;
OS Sulfolobus islandicus (strain M.16.27).
OC Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC Sulfolobus.
OX NCBI_TaxID=427318;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=M.16.27;
RX PubMed=19435847; DOI=10.1073/pnas.0808945106;
RA Reno M.L., Held N.L., Fields C.J., Burke P.V., Whitaker R.J.;
RT "Biogeography of the Sulfolobus islandicus pan-genome.";
RL Proc. Natl. Acad. Sci. U.S.A. 106:8605-8610(2009).
CC -!- FUNCTION: Involved in the biosynthesis of the thiazole moiety of
CC thiamine. Catalyzes the conversion of NAD and glycine to adenosine
CC diphosphate 5-(2-hydroxyethyl)-4-methylthiazole-2-carboxylate (ADT), an
CC adenylated thiazole intermediate, using free sulfide as a source of
CC sulfur. {ECO:0000255|HAMAP-Rule:MF_00304}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=glycine + hydrogen sulfide + NAD(+) = ADP-5-ethyl-4-
CC methylthiazole-2-carboxylate + H(+) + 3 H2O + nicotinamide;
CC Xref=Rhea:RHEA:55704, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17154, ChEBI:CHEBI:29919, ChEBI:CHEBI:57305,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:139151; EC=2.4.2.59;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00304};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00304};
CC -!- PATHWAY: Cofactor biosynthesis; thiamine diphosphate biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00304}.
CC -!- SUBUNIT: Homooctamer; tetramer of dimers. {ECO:0000255|HAMAP-
CC Rule:MF_00304}.
CC -!- SIMILARITY: Belongs to the THI4 family. {ECO:0000255|HAMAP-
CC Rule:MF_00304}.
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DR EMBL; CP001401; ACP55661.1; -; Genomic_DNA.
DR RefSeq; WP_012713900.1; NC_012632.1.
DR AlphaFoldDB; C3N6N6; -.
DR SMR; C3N6N6; -.
DR EnsemblBacteria; ACP55661; ACP55661; M1627_1786.
DR GeneID; 7812450; -.
DR GeneID; 7940348; -.
DR GeneID; 8761761; -.
DR KEGG; sim:M1627_1786; -.
DR HOGENOM; CLU_053727_2_0_2; -.
DR OMA; GIVMNWT; -.
DR UniPathway; UPA00060; -.
DR Proteomes; UP000002307; Chromosome.
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:0009229; P:thiamine diphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0052837; P:thiazole biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.50.50.60; -; 1.
DR HAMAP; MF_00304; Thi4; 1.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR002922; Thi4_fam.
DR InterPro; IPR022828; Thi4_prok.
DR SUPFAM; SSF51905; SSF51905; 1.
DR TIGRFAMs; TIGR00292; TIGR00292; 1.
PE 3: Inferred from homology;
KW Iron; Metal-binding; NAD; Thiamine biosynthesis; Transferase.
FT CHAIN 1..267
FT /note="Thiamine thiazole synthase"
FT /id="PRO_1000205005"
FT BINDING 41
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 60..61
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 68
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 132
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 160..162
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 162
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 177
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 227
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
FT BINDING 237
FT /ligand="glycine"
FT /ligand_id="ChEBI:CHEBI:57305"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00304"
SQ SEQUENCE 267 AA; 28688 MW; 4EB28B52618765AF CRC64;
MEVKIKQVDE VKISRYIIKE TMEDWYQFVE SDVVIVGAGP SGLSAAYYLA KAGLKTLVFE
RRLSFGGGIG GGAMLFHKLI IEKPADEILR EVNVRLKEVE EGVYVVDSAE FMAKLATAAI
DAGAKIIHGV TVDDVIFREN PLRVAGVAVE WTATQMASLH VDPIFISAKA VVDATGHDAE
VISVAARKIP ELGIVIPGEK SAYSERAEEL TVINTGKVAE GLYAAGMAVT EVKGLPRMGP
IFGAMVLSGK AVAEEITKDL LKSEIRT
