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THIC_ECO24
ID   THIC_ECO24              Reviewed;         631 AA.
AC   A7ZUK9;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Phosphomethylpyrimidine synthase {ECO:0000255|HAMAP-Rule:MF_00089};
DE            EC=4.1.99.17 {ECO:0000255|HAMAP-Rule:MF_00089};
DE   AltName: Full=Hydroxymethylpyrimidine phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00089};
DE            Short=HMP-P synthase {ECO:0000255|HAMAP-Rule:MF_00089};
DE            Short=HMP-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00089};
DE            Short=HMPP synthase {ECO:0000255|HAMAP-Rule:MF_00089};
DE   AltName: Full=Thiamine biosynthesis protein ThiC {ECO:0000255|HAMAP-Rule:MF_00089};
GN   Name=thiC {ECO:0000255|HAMAP-Rule:MF_00089};
GN   OrderedLocusNames=EcE24377A_4536;
OS   Escherichia coli O139:H28 (strain E24377A / ETEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=331111;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=E24377A / ETEC;
RX   PubMed=18676672; DOI=10.1128/jb.00619-08;
RA   Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA   Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA   Henderson I.R., Sperandio V., Ravel J.;
RT   "The pangenome structure of Escherichia coli: comparative genomic analysis
RT   of E. coli commensal and pathogenic isolates.";
RL   J. Bacteriol. 190:6881-6893(2008).
CC   -!- FUNCTION: Catalyzes the synthesis of the hydroxymethylpyrimidine
CC       phosphate (HMP-P) moiety of thiamine from aminoimidazole ribotide (AIR)
CC       in a radical S-adenosyl-L-methionine (SAM)-dependent reaction.
CC       {ECO:0000255|HAMAP-Rule:MF_00089}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-amino-1-(5-phospho-beta-D-ribosyl)imidazole + S-adenosyl-L-
CC         methionine = 4-amino-2-methyl-5-(phosphooxymethyl)pyrimidine + 5'-
CC         deoxyadenosine + CO + formate + 3 H(+) + L-methionine;
CC         Xref=Rhea:RHEA:24840, ChEBI:CHEBI:15378, ChEBI:CHEBI:15740,
CC         ChEBI:CHEBI:17245, ChEBI:CHEBI:17319, ChEBI:CHEBI:57844,
CC         ChEBI:CHEBI:58354, ChEBI:CHEBI:59789, ChEBI:CHEBI:137981;
CC         EC=4.1.99.17; Evidence={ECO:0000255|HAMAP-Rule:MF_00089};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00089};
CC       Note=Binds 1 [4Fe-4S] cluster per subunit. The cluster is coordinated
CC       with 3 cysteines and an exchangeable S-adenosyl-L-methionine.
CC       {ECO:0000255|HAMAP-Rule:MF_00089};
CC   -!- PATHWAY: Cofactor biosynthesis; thiamine diphosphate biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00089}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00089}.
CC   -!- SIMILARITY: Belongs to the ThiC family. {ECO:0000255|HAMAP-
CC       Rule:MF_00089}.
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DR   EMBL; CP000800; ABV21003.1; -; Genomic_DNA.
DR   RefSeq; WP_001276927.1; NC_009801.1.
DR   AlphaFoldDB; A7ZUK9; -.
DR   SMR; A7ZUK9; -.
DR   EnsemblBacteria; ABV21003; ABV21003; EcE24377A_4536.
DR   KEGG; ecw:EcE24377A_4536; -.
DR   HOGENOM; CLU_013181_2_1_6; -.
DR   OMA; TWELFRD; -.
DR   UniPathway; UPA00060; -.
DR   Proteomes; UP000001122; Chromosome.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0016830; F:carbon-carbon lyase activity; IEA:InterPro.
DR   GO; GO:0008270; F:zinc ion binding; 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   Gene3D; 3.20.20.540; -; 1.
DR   HAMAP; MF_00089; ThiC; 1.
DR   InterPro; IPR037509; ThiC.
DR   InterPro; IPR025747; ThiC-associated_dom.
DR   InterPro; IPR038521; ThiC/Bza_core_dom.
DR   InterPro; IPR002817; ThiC/BzaA/B.
DR   PANTHER; PTHR30557; PTHR30557; 1.
DR   Pfam; PF13667; ThiC-associated; 1.
DR   Pfam; PF01964; ThiC_Rad_SAM; 1.
DR   SFLD; SFLDF00407; phosphomethylpyrimidine_syntha; 1.
DR   TIGRFAMs; TIGR00190; thiC; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Iron; Iron-sulfur; Lyase; Metal-binding; S-adenosyl-L-methionine;
KW   Thiamine biosynthesis; Zinc.
FT   CHAIN           1..631
FT                   /note="Phosphomethylpyrimidine synthase"
FT                   /id="PRO_1000057592"
FT   BINDING         239
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         268
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         297
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         333
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         353..355
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         394..397
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         433
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         437
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         460
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         501
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         581
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         584
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT   BINDING         589
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
SQ   SEQUENCE   631 AA;  70849 MW;  6909239A7922BE9F CRC64;
     MSATKLTRRE QRARAQHFID TLEGTAFPNS KRIYITGTHP GVRVPMREIQ LSPTLIGGSK
     EQPQYEENEA IPVYDTSGPY GDPQIAINVQ QGLAKLRQPW IDARGDTEEL TVRSSDYTKA
     RLADDGLDEL RFSGVLTPKR AKAGRRVTQL HYARQGIITP EMEFIAIREN MGRERIRSEV
     LRHQHPGMSF GAHLPENITA EFVRDEVAAG RAIIPANINH PESEPMIIGR NFLVKVNANI
     GNSAVTSSIE EEVEKLVWST RWGADTVMDL STGRYIHETR EWILRNSPVP IGTVPIYQAL
     EKVNGIAEDL TWEAFRDTLL EQAEQGVDYF TIHAGVLLRY VPMTAKRLTG IVSRGGSIMA
     KWCLSHHQEN FLYQHFREIC EICAAYDVSL SLGDGLRPGS IQDANDEAQF AELHTLGELT
     KIAWEYDVQV MIEGPGHVPM QMIRRNMTKE LEHCHEAPFY TLGPLTTDIA PGYDHFTSGI
     GAAMIGWFGC AMLCYVTPKE HLGLPNKEDV KQGLITYKIA AHAADLAKGH PGAQIRDNAM
     SKARFEFRWE DQFNLALDPF TARAYHDETL PQESGKVAHF CSMCGPKFCS MKISQEVRDY
     AATQTIEMGM ADMSENFRAR GGEIYLRKEE A
 
 
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