THIG_ALIB4
ID THIG_ALIB4 Reviewed; 259 AA.
AC A8ER78;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-NOV-2007, sequence version 1.
DT 03-AUG-2022, entry version 79.
DE RecName: Full=Thiazole synthase {ECO:0000255|HAMAP-Rule:MF_00443};
DE EC=2.8.1.10 {ECO:0000255|HAMAP-Rule:MF_00443};
GN Name=thiG {ECO:0000255|HAMAP-Rule:MF_00443}; OrderedLocusNames=Abu_0168;
OS Aliarcobacter butzleri (strain RM4018) (Arcobacter butzleri).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC Arcobacteraceae; Aliarcobacter.
OX NCBI_TaxID=367737;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RM4018;
RX PubMed=18159241; DOI=10.1371/journal.pone.0001358;
RA Miller W.G., Parker C.T., Rubenfield M., Mendz G.L., Woesten M.M.S.M.,
RA Ussery D.W., Stolz J.F., Binnewies T.T., Hallin P.F., Wang G., Malek J.A.,
RA Rogosin A., Stanker L.H., Mandrell R.E.;
RT "The complete genome sequence and analysis of the Epsilonproteobacterium
RT Arcobacter butzleri.";
RL PLoS ONE 2:E1358-E1358(2007).
CC -!- FUNCTION: Catalyzes the rearrangement of 1-deoxy-D-xylulose 5-phosphate
CC (DXP) to produce the thiazole phosphate moiety of thiamine. Sulfur is
CC provided by the thiocarboxylate moiety of the carrier protein ThiS. In
CC vitro, sulfur can be provided by H(2)S. {ECO:0000255|HAMAP-
CC Rule:MF_00443}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-deoxy-D-xylulose 5-phosphate + 2-iminoacetate + [sulfur-
CC carrier protein ThiS]-C-terminal Gly-NH-CH2-C(O)SH = 2-[(2R,5Z)-2-
CC carboxy-4-methylthiazol-5(2H)-ylidene]ethyl phosphate + [sulfur-
CC carrier protein ThiS]-C-terminal Gly-Gly + 2 H(+) + 2 H2O;
CC Xref=Rhea:RHEA:26297, Rhea:RHEA-COMP:12908, Rhea:RHEA-COMP:12909,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57792,
CC ChEBI:CHEBI:62899, ChEBI:CHEBI:77846, ChEBI:CHEBI:90619,
CC ChEBI:CHEBI:90778; EC=2.8.1.10; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00443};
CC -!- PATHWAY: Cofactor biosynthesis; thiamine diphosphate biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00443}.
CC -!- SUBUNIT: Homotetramer. Forms heterodimers with either ThiH or ThiS.
CC {ECO:0000255|HAMAP-Rule:MF_00443}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00443}.
CC -!- SIMILARITY: Belongs to the ThiG family. {ECO:0000255|HAMAP-
CC Rule:MF_00443}.
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DR EMBL; CP000361; ABV66452.1; -; Genomic_DNA.
DR RefSeq; WP_012012055.1; NC_009850.1.
DR AlphaFoldDB; A8ER78; -.
DR SMR; A8ER78; -.
DR STRING; 367737.Abu_0168; -.
DR EnsemblBacteria; ABV66452; ABV66452; Abu_0168.
DR KEGG; abu:Abu_0168; -.
DR eggNOG; COG2022; Bacteria.
DR HOGENOM; CLU_062233_1_0_7; -.
DR OMA; PHNFQLI; -.
DR OrthoDB; 784095at2; -.
DR UniPathway; UPA00060; -.
DR Proteomes; UP000001136; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:1990107; F:thiazole synthase activity; IEA:RHEA.
DR GO; GO:0009229; P:thiamine diphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd04728; ThiG; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_00443; ThiG; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR033983; Thiazole_synthase_ThiG.
DR InterPro; IPR008867; ThiG.
DR PANTHER; PTHR34266; PTHR34266; 1.
DR Pfam; PF05690; ThiG; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Reference proteome; Schiff base; Thiamine biosynthesis;
KW Transferase.
FT CHAIN 1..259
FT /note="Thiazole synthase"
FT /id="PRO_1000060247"
FT ACT_SITE 99
FT /note="Schiff-base intermediate with DXP"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00443"
FT BINDING 161
FT /ligand="1-deoxy-D-xylulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:57792"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00443"
FT BINDING 187..188
FT /ligand="1-deoxy-D-xylulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:57792"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00443"
FT BINDING 209..219
FT /ligand="1-deoxy-D-xylulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:57792"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00443"
SQ SEQUENCE 259 AA; 27787 MW; A58E9132A35410E8 CRC64;
MNDILKIGKY ELNSRLIVGS GKYKDFQTTK EATLASGSEL ITVAIRRVNI TNPNEENLLD
YFKDTNVKFL PNSAGCFTAE EAITTFRLMR EATGIDLIKL EVIGDAQKTL YPDVIETIKA
CEILKKDGFT IMAYTSDDPI IAKRLEDAGA DAIMPLAAPI GSGLGIQNKY NIAFIRDAVK
VPVIVDAGIG CASDASIAME LGADAVLANS AIACAQNPIQ MAEAMKYAVI AGRLGYKAGR
IPKKPYATAS SPIDGLIQF
