THIC_ANAMM
ID THIC_ANAMM Reviewed; 553 AA.
AC Q5PB42;
DT 27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT 27-JUN-2006, sequence version 2.
DT 03-AUG-2022, entry version 88.
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=AM440;
OS Anaplasma marginale (strain St. Maries).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Anaplasmataceae; Anaplasma.
OX NCBI_TaxID=234826;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=St. Maries;
RX PubMed=15618402; DOI=10.1073/pnas.0406656102;
RA Brayton K.A., Kappmeyer L.S., Herndon D.R., Dark M.J., Tibbals D.L.,
RA Palmer G.H., McGuire T.C., Knowles D.P. Jr.;
RT "Complete genome sequencing of Anaplasma marginale reveals that the surface
RT is skewed to two superfamilies of outer membrane proteins.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:844-849(2005).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAV86488.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000030; AAV86488.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; Q5PB42; -.
DR SMR; Q5PB42; -.
DR KEGG; ama:AM440; -.
DR HOGENOM; CLU_013181_2_1_5; -.
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..553
FT /note="Phosphomethylpyrimidine synthase"
FT /id="PRO_0000242234"
FT BINDING 192
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 221
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 250
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 286
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 306..308
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 347..350
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 386
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 390
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 413
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 454
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 534
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 537
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 542
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 553 AA; 60759 MW; 855214B1CA5ED3F5 CRC64;
MDYSGVYPSS SKVYVRGNLY SDVNVGMRKV AIKNGTSEFL VYDTGGPYTD REAKLDIKSG
IRKLRSTWIE NRRDTSPVQR SFVPSGSSCT RYQKAAENVL RKIAGGSPVT QLFYAQNGII
TPEMEYVAIR ENALRMQVGS SETGAAAHQE ITPEFVRQEI AAGRAIIPAN INHPESEPMV
IGRNFLVKIN ANIGNSAVLS GIEEEVKKMA LAVAYGADTV MDLSTGSDIH NIREWIIRNS
PVPIGTVPIY QALNKVKGVV ENLSFEVFKE TIIEQAEQGV DYFTIHAGVL KDYIKHARGR
VTGIVSRGGA IMAQWCLAHN KENFLYTHFD EICEIMGSYD VAFSLGDGLR PGSIDDANDE
AQFLELKTLG ELVKVAWHHG CQVMVEGPGH VPMHLIKENM EKQLHLCSEA PFYTLGPLTT
DIAPGYDHIT SAIGAAMIGW YGTAMLCYVT PKEHLGLPNI DDVKAGVISY KIAAHAADLA
KGNPSAYARD YALSQARFDF RWYDQFNLSL DPLTAKSLHD ESLPGKGGKT ANFCSMCGPK
FCSMKLSKEL VDQ
