ID   THIC_KLEP3              Reviewed;         631 AA.
AC   B5XYE4;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
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}; OrderedLocusNames=KPK_5298;
OS   Klebsiella pneumoniae (strain 342).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=507522;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=342;
RX   PubMed=18654632; DOI=10.1371/journal.pgen.1000141;
RA   Fouts D.E., Tyler H.L., DeBoy R.T., Daugherty S., Ren Q., Badger J.H.,
RA   Durkin A.S., Huot H., Shrivastava S., Kothari S., Dodson R.J., Mohamoud Y.,
RA   Khouri H., Roesch L.F.W., Krogfelt K.A., Struve C., Triplett E.W.,
RA   Methe B.A.;
RT   "Complete genome sequence of the N2-fixing broad host range endophyte
RT   Klebsiella pneumoniae 342 and virulence predictions verified in mice.";
RL   PLoS Genet. 4:E1000141-E1000141(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; CP000964; ACI11709.1; -; Genomic_DNA.
DR   AlphaFoldDB; B5XYE4; -.
DR   SMR; B5XYE4; -.
DR   EnsemblBacteria; ACI11709; ACI11709; KPK_5298.
DR   KEGG; kpe:KPK_5298; -.
DR   HOGENOM; CLU_013181_2_1_6; -.
DR   OMA; TWELFRD; -.
DR   OrthoDB; 505395at2; -.
DR   UniPathway; UPA00060; -.
DR   Proteomes; UP000001734; 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_1000093212"
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;  70778 MW;  300868960211D7CF CRC64;
     MSTTKLTRRE QREHAQRFID TLAGTAFPNS RRIYVHGSQA DIRVPMREIE LSPTLVGGDK
     DNPRYEANEP IPVYDTSGPY GDPDIGIDVR QGLAKLRQPW IDARNDCAPL SERSSAYTKA
     RLADDGLDEL RFSGLLTPKR AVAGKCVTQL HYARQGIVTP EMEFIAIREN MGRERIRSEV
     LRQQHAGEGF GARLPENITP EFVRDEVAAG RAIIPANINH PESEPMIIGR NFLVKVNANI
     GNSAVTSSIE EEVEKLVWST RWGADTVMDL STGRYIHETR EWILRNSPVP IGTVPIYQAL
     EKVNGIAENL TWEAFRDTLL EQAEQGVDYF TIHAGVLLRY VPMTAKRLTG IVSRGGSIMA
     KWCLSHHQEN FLYQHFREIC EICAAYDVSL SLGDGLRPGS IQDANDEAQF SELRTLGELT
     KIAWEYDVQV MIEGPGHVPM QMIRRNMTEE LEHCHEAPFY TLGPLTTDIA PGYDHFTSGI
     GAAMIGWFGC AMLCYVTPKE HLGLPNKEDV KQGLITYKIA AHAADLAKGH PGAQIRDNAM
     SKARFEFRWE DQFNLALDPF TARAYHDETL PQESGKVAHF CSMCGPKFCS MKITQEVRDY
     AAKQNIEAGM ADMSHHFRAR GGEIYLKQEE A