ID   GCH1_DEHM1              Reviewed;         189 AA.
AC   Q3Z782;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   27-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=GTP cyclohydrolase 1 {ECO:0000255|HAMAP-Rule:MF_00223};
DE            EC=3.5.4.16 {ECO:0000255|HAMAP-Rule:MF_00223};
DE   AltName: Full=GTP cyclohydrolase I {ECO:0000255|HAMAP-Rule:MF_00223};
DE            Short=GTP-CH-I {ECO:0000255|HAMAP-Rule:MF_00223};
GN   Name=folE {ECO:0000255|HAMAP-Rule:MF_00223}; OrderedLocusNames=DET1204;
OS   Dehalococcoides mccartyi (strain ATCC BAA-2266 / KCTC 15142 / 195)
OS   (Dehalococcoides ethenogenes (strain 195)).
OC   Bacteria; Chloroflexi; Dehalococcoidia; Dehalococcoidales;
OC   Dehalococcoidaceae; Dehalococcoides.
OX   NCBI_TaxID=243164;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-2266 / KCTC 15142 / 195;
RX   PubMed=15637277; DOI=10.1126/science.1102226;
RA   Seshadri R., Adrian L., Fouts D.E., Eisen J.A., Phillippy A.M., Methe B.A.,
RA   Ward N.L., Nelson W.C., DeBoy R.T., Khouri H.M., Kolonay J.F., Dodson R.J.,
RA   Daugherty S.C., Brinkac L.M., Sullivan S.A., Madupu R., Nelson K.E.,
RA   Kang K.H., Impraim M., Tran K., Robinson J.M., Forberger H.A., Fraser C.M.,
RA   Zinder S.H., Heidelberg J.F.;
RT   "Genome sequence of the PCE-dechlorinating bacterium Dehalococcoides
RT   ethenogenes.";
RL   Science 307:105-108(2005).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=GTP + H2O = 7,8-dihydroneopterin 3'-triphosphate + formate +
CC         H(+); Xref=Rhea:RHEA:17473, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15740, ChEBI:CHEBI:37565, ChEBI:CHEBI:58462; EC=3.5.4.16;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00223};
CC   -!- PATHWAY: Cofactor biosynthesis; 7,8-dihydroneopterin triphosphate
CC       biosynthesis; 7,8-dihydroneopterin triphosphate from GTP: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00223}.
CC   -!- SUBUNIT: Toroid-shaped homodecamer, composed of two pentamers of five
CC       dimers. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family.
CC       {ECO:0000255|HAMAP-Rule:MF_00223}.
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DR   EMBL; CP000027; AAW39542.1; -; Genomic_DNA.
DR   RefSeq; WP_010936894.1; NC_002936.3.
DR   AlphaFoldDB; Q3Z782; -.
DR   SMR; Q3Z782; -.
DR   STRING; 243164.DET1204; -.
DR   PRIDE; Q3Z782; -.
DR   EnsemblBacteria; AAW39542; AAW39542; DET1204.
DR   GeneID; 60795071; -.
DR   KEGG; det:DET1204; -.
DR   eggNOG; COG0302; Bacteria.
DR   HOGENOM; CLU_049768_3_3_0; -.
DR   OMA; CEHMCMS; -.
DR   OrthoDB; 1632367at2; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000008289; Chromosome.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003934; F:GTP cyclohydrolase I activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0035998; P:7,8-dihydroneopterin 3'-triphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.286.10; -; 1.
DR   Gene3D; 3.30.1130.10; -; 1.
DR   HAMAP; MF_00223; FolE; 1.
DR   InterPro; IPR043133; GTP-CH-I_C/QueF.
DR   InterPro; IPR043134; GTP-CH-I_N.
DR   InterPro; IPR001474; GTP_CycHdrlase_I.
DR   InterPro; IPR018234; GTP_CycHdrlase_I_CS.
DR   InterPro; IPR020602; GTP_CycHdrlase_I_dom.
DR   PANTHER; PTHR11109; PTHR11109; 1.
DR   Pfam; PF01227; GTP_cyclohydroI; 1.
DR   TIGRFAMs; TIGR00063; folE; 1.
DR   PROSITE; PS00859; GTP_CYCLOHYDROL_1_1; 1.
PE   3: Inferred from homology;
KW   GTP-binding; Hydrolase; Metal-binding; Nucleotide-binding;
KW   One-carbon metabolism; Reference proteome; Zinc.
FT   CHAIN           1..189
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000043687"
FT   BINDING         76
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         79
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         149
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   189 AA;  21170 MW;  CC03BE97DE462B0C CRC64;
     MFDEQAIKQS VQNMLLAIGE DPEREGLKET PRRVAQMYAE LFSGMNQDPA EVLRVGYELG
     HREMVIIKDI PFYSMCEHHL LPFSGVVHIG YIPNIDGRVV GISKLARVVE IYAKRPQIQE
     RMATQIADAI IDGLKCDGVA VVIEAEHMCM VMRGIKKPGS RVITSALRGS FHKSPAARAE
     FLSLIQQKH