THIC_ECO5E
ID THIC_ECO5E Reviewed; 631 AA.
AC B5Z090;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 1.
DT 03-AUG-2022, entry version 75.
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=ECH74115_5462;
OS Escherichia coli O157:H7 (strain EC4115 / EHEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=444450;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EC4115 / EHEC;
RX PubMed=22135463; DOI=10.1073/pnas.1107176108;
RA Eppinger M., Mammel M.K., Leclerc J.E., Ravel J., Cebula T.A.;
RT "Genomic anatomy of Escherichia coli O157:H7 outbreaks.";
RL Proc. Natl. Acad. Sci. U.S.A. 108:20142-20147(2011).
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; CP001164; ACI38072.1; -; Genomic_DNA.
DR RefSeq; WP_001276909.1; NC_011353.1.
DR AlphaFoldDB; B5Z090; -.
DR SMR; B5Z090; -.
DR KEGG; ecf:ECH74115_5462; -.
DR HOGENOM; CLU_013181_2_1_6; -.
DR OMA; TWELFRD; -.
DR UniPathway; UPA00060; -.
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_1000093207"
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; 70814 MW; 5494CBBD9C036F2E CRC64;
MSATKLTRRE QRAQAQHFID TLEGTAFPNS KRIYITGTQP GVRVPMREIQ LSPTLIGGSK
EQPQYEENEA IPVYDTSGPY GDPQIAINVQ QGLAKLRQPW IDARGDTEEL TVRSSDYTKA
RLADDGLDEL RFSGVLTPKR AKAGRRVTQL HYARQGIITP EMEFIAIREN MGRERIRSEV
LRHQHPGMSF GARLPENITA EFVRDEVAAG RAIIPANINH PESEPMIIGR NFLVKVNANI
GNSAVTSSIE EEVEKLVWST RWGADTVMDL STGRYIHETR EWILRNSPVP IGTVPIYQAL
EKVNGIAEDL TWEAFRDTLL EQAEQGVDYF TIHAGVLLRY VPMTAKRLTG IVSRGGSIMA
KWCLSHHQEN FLYQHFREIC EICAAYDVSL SLGDGLRPGS IQDANDEAQF AELHTLGELT
KIAWEYDVQV MIEGPGHVPM QMIRRNMTEE LEHCHEAPFY TLGPLTTDIA PGYDHFTSGI
GAAMIGWFGC AMLCYVTPKE HLGLPNKEDV KQGLITYKIA AHAADLAKGH PGAQIRDNAM
SKARFEFRWE DQFNLALDPF TARAYHDETL PQESGKVAHF CSMCGPKFCS MKISQEVRDY
AATQTIEMGI ADMSENFRAR GGEIYLRKEE A
