THIC_CHLCH
ID THIC_CHLCH Reviewed; 531 AA.
AC Q3ATM0;
DT 27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT 22-NOV-2005, sequence version 1.
DT 03-AUG-2022, entry version 92.
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=Cag_0382;
OS Chlorobium chlorochromatii (strain CaD3).
OC Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC Chlorobium/Pelodictyon group; Chlorobium.
OX NCBI_TaxID=340177;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CaD3;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Bryant D., Schmutz J., Larimer F.,
RA Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Chlorobium chlorochromatii CaD3.";
RL Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
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 -!- SIMILARITY: Belongs to the ThiC family. {ECO:0000255|HAMAP-
CC Rule:MF_00089}.
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DR EMBL; CP000108; ABB27655.1; -; Genomic_DNA.
DR RefSeq; WP_011361428.1; NC_007514.1.
DR AlphaFoldDB; Q3ATM0; -.
DR SMR; Q3ATM0; -.
DR STRING; 340177.Cag_0382; -.
DR EnsemblBacteria; ABB27655; ABB27655; Cag_0382.
DR KEGG; cch:Cag_0382; -.
DR eggNOG; COG0422; Bacteria.
DR HOGENOM; CLU_013181_2_1_10; -.
DR OMA; TWELFRD; -.
DR OrthoDB; 505395at2; -.
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..531
FT /note="Phosphomethylpyrimidine synthase"
FT /id="PRO_0000242251"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 196
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 225
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 261
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 281..283
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 322..325
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 361
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 365
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 388
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 429
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 511
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 514
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 519
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 531 AA; 59332 MW; 041F62689DE99E9F CRC64;
MSKAPLFEKI SVKGTLFPIE VSMKRLHLSH PYTCNGQEFS SLPMYDTSGL HGDCRTQVDP
HVGLPPLRSS WNFPRTVQLG VAQTQMHYAR KGVITPEMEY VAIRENQQLE EWIRSFNRHG
KKVEPITPEF VRQEIAAGRA IIPANLKHPE LEPMIIGRHF RVKINSNIGN SAMGSSIEEE
VEKAVWSCRW GADTVMDLST GANIHQTREW ILRNSPVPIG TVPVYQALEK AGGKAENLTW
ELYRDTLIEQ AEQGVDYFTI HAGILQEHLP YAERRLTGIV SRGGSIMATW CRHHQQENFL
YTHFNDICEI LKSYDIAVSL GDALRPGSIL DANDEAQFGE LKVLGELTKQ AWQHEVQVMI
EGPGHVPLNL IEENMQKELE LCYEAPFYTL GPLITDIAAG YDHINSAIGG ALLASLGCSM
LCYVTPKEHL GLPDRNDVRE GVIAHKVAAH GADIARGNPT AWLRDTLMSQ ARYSFAWEDQ
FNLSLDPEKT RAVHSQSIAA SGYSAPNPDF CTMCGPDFCS MKRTQKMGKG N
