THIC_COXB1
ID THIC_COXB1 Reviewed; 554 AA.
AC B6J5W3;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-DEC-2008, sequence version 1.
DT 03-AUG-2022, entry version 68.
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=CbuK_0526;
OS Coxiella burnetii (strain CbuK_Q154) (Coxiella burnetii (strain Q154)).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales; Coxiellaceae;
OC Coxiella.
OX NCBI_TaxID=434924;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CbuK_Q154;
RX PubMed=19047403; DOI=10.1128/iai.01141-08;
RA Beare P.A., Unsworth N., Andoh M., Voth D.E., Omsland A., Gilk S.D.,
RA Williams K.P., Sobral B.W., Kupko J.J. III, Porcella S.F., Samuel J.E.,
RA Heinzen R.A.;
RT "Comparative genomics reveal extensive transposon-mediated genomic
RT plasticity and diversity among potential effector proteins within the genus
RT Coxiella.";
RL Infect. Immun. 77:642-656(2009).
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; CP001020; ACJ19805.1; -; Genomic_DNA.
DR AlphaFoldDB; B6J5W3; -.
DR SMR; B6J5W3; -.
DR KEGG; cbc:CbuK_0526; -.
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..554
FT /note="Phosphomethylpyrimidine synthase"
FT /id="PRO_1000198049"
FT BINDING 188
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 217
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 246
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 282
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 302..304
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 343..346
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 382
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 386
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 409
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 450
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00089"
FT BINDING 530
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 533
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 538
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 554 AA; 62516 MW; 7FBC712AEF66B55B CRC64;
MRREGTTRLH RTFLLRVYLK ESAVITYPAS KKIYCQGKIF PTIRVGMREI QLTNGDSLTL
YDTSGPYSDP NISIKSPQGL PRLREPWIKV RPRKTQLAFA KEGVITPEME YAAIRENQKR
ELKKNTDQER ERRLQGNSLS ARIPNPITPE FIRNEIACGR AILPANINHP ESEPMIIGRH
FLVKVNANIG NSSLTSSVEE EVEKLIWALR WGADTVMDLS TGKKIKEIRE TILRHSPVPI
GTVPLYEALE KVDGDVKALT WEIFRDTLIS QAEQGVDYFT IHAGVLNRFI PLTQKRVTGI
VSRGGSLMAK WCLLHREENF LYTHFTEICE IMRAYDVSFS LGDGLRPGSI ADANDEAQFA
ELKIQGELNR IAWKYGVQVM NEGPGHIPLN LIEENMTKQL AYCREAPFYT LGPLTTDIAP
GYDHIGSAIG AAFIAWQGCA LLCYVTPKEH LGLPNKQDVK EGLIAYKIAA HAADLAKGHP
AARQRDDLLS QARFEFRWHD QFNLALDAET ARLFHDETLP KEAAKHAHFC SLCGPKFCAY
KTSHEVRDTL QKVT
