ID E8T346_THEA1 Unreviewed; 268 AA.
AC E8T346;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 67.
DE RecName: Full=Thiamine thiazole synthase {ECO:0000256|HAMAP-Rule:MF_00304};
DE EC=2.4.2.59 {ECO:0000256|HAMAP-Rule:MF_00304};
GN Name=thi4 {ECO:0000256|HAMAP-Rule:MF_00304};
GN OrderedLocusNames=Theam_0077 {ECO:0000313|EMBL:ADU96051.1};
OS Thermovibrio ammonificans (strain DSM 15698 / JCM 12110 / HB-1).
OC Bacteria; Aquificota; Aquificae; Desulfurobacteriales;
OC Desulfurobacteriaceae; Thermovibrio.
OX NCBI_TaxID=648996 {ECO:0000313|EMBL:ADU96051.1, ECO:0000313|Proteomes:UP000006362};
RN [1] {ECO:0000313|EMBL:ADU96051.1, ECO:0000313|Proteomes:UP000006362}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 15698 / JCM 12110 / HB-1
RC {ECO:0000313|Proteomes:UP000006362};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Davenport K., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Ovchinnikova G., Vetriani C., Woyke T.;
RT "Complete sequence of chromosome of Thermovibrio ammonificans HB-1.";
RL Submitted (JAN-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0007829|PDB:7RK0}
RP X-RAY CRYSTALLOGRAPHY (2.28 ANGSTROMS) IN COMPLEX WITH FE(3+).
RX PubMed=34409984; DOI=10.1042/bcj20210565;
RA Joshi J., Li Q., Garcia-Garcia J.D., Leong B.J., Hu Y., Bruner S.D.,
RA Hanson A.D.;
RT "Structure and function of aerotolerant, multiple-turnover THI4 thiazole
RT synthases.";
RL Biochem. J. 478:3265-3279(2021).
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:0000256|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:0000256|HAMAP-Rule:MF_00304};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00304};
CC -!- PATHWAY: Cofactor biosynthesis; thiamine diphosphate biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00304}.
CC -!- SUBUNIT: Homooctamer; tetramer of dimers. {ECO:0000256|HAMAP-
CC Rule:MF_00304}.
CC -!- SIMILARITY: Belongs to the THI4 family. {ECO:0000256|HAMAP-
CC Rule:MF_00304}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00304}.
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DR EMBL; CP002444; ADU96051.1; -; Genomic_DNA.
DR PDB; 7RK0; X-ray; 2.28 A; A/B/C/D=1-268.
DR AlphaFoldDB; E8T346; -.
DR SMR; E8T346; -.
DR STRING; 648996.Theam_0077; -.
DR KEGG; tam:Theam_0077; -.
DR eggNOG; COG1635; Bacteria.
DR HOGENOM; CLU_053727_2_0_0; -.
DR OrthoDB; 9806565at2; -.
DR UniPathway; UPA00060; -.
DR Proteomes; UP000006362; 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; FAD/NAD(P)-binding domain; 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 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; PR00420; RNGMNOXGNASE.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
PE 1: Evidence at protein level;
KW 3D-structure {ECO:0007829|PDB:7RK0};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00304};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00304}; NAD {ECO:0000256|HAMAP-Rule:MF_00304};
KW Thiamine biosynthesis {ECO:0000256|ARBA:ARBA00022977, ECO:0000256|HAMAP-
KW Rule:MF_00304}; Transferase {ECO:0000256|HAMAP-Rule:MF_00304}.
FT BINDING 37
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 56..57
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 64
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 160
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00304"
FT BINDING 160
FT /ligand="Fe(3+)"
FT /ligand_id="ChEBI:CHEBI:29034"
FT /evidence="ECO:0007829|PDB:7RK0"
FT BINDING 160
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /ligand_note="ligand shared between two adjacent protomers"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00304"
FT BINDING 175
FT /ligand="Fe(3+)"
FT /ligand_id="ChEBI:CHEBI:29034"
FT /evidence="ECO:0007829|PDB:7RK0"
FT BINDING 175
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 178
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 229
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:0000256|HAMAP-Rule:MF_00304"
FT BINDING 239
FT /ligand="glycine"
FT /ligand_id="ChEBI:CHEBI:57305"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00304"
SQ SEQUENCE 268 AA; 28736 MW; 4328E4614D15C1CE CRC64;
MQNLSEVVIS EAIITAFMEK LKSHLETDVA IVGGGPSGLV AGYYLAKKGY RVAIFERRLS
IGGGMWAGAM FFNEIVVQEM GREILDEFGV NYREFKPGYY LADAVEATTT IASKAVKAGA
TVFNGVTAED VVLKQVNGQY RVCGLVINWT TVELNHLMVD PLVITAKYVV DATGHDASVV
STLQRKAGIK LNTETGCVVG EKPLWASVGE EDTVKNSKEV FPGIYVSGMA ANATCGSHRM
GPVFGGMLMS GKKVAEEIAA KLNQNKEA
//
