ID   GCH1_CALMQ              Reviewed;         188 AA.
AC   A8MC60;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   03-AUG-2022, entry version 78.
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=Cmaq_0521;
OS   Caldivirga maquilingensis (strain ATCC 700844 / DSM 13496 / JCM 10307 /
OS   IC-167).
OC   Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC   Caldivirga.
OX   NCBI_TaxID=397948;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700844 / DSM 13496 / JCM 10307 / IC-167;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Saunders E., Brettin T., Bruce D., Detter J.C.,
RA   Han C., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Ivanova N., Biddle J.F., Zhang Z., Fitz-Gibbon S.T., Lowe T.M.,
RA   Saltikov C., House C.H., Richardson P.;
RT   "Complete sequence of Caldivirga maquilingensis IC-167.";
RL   Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
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: Homomer. {ECO:0000255|HAMAP-Rule:MF_00223}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family.
CC       {ECO:0000255|HAMAP-Rule:MF_00223}.
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DR   EMBL; CP000852; ABW01366.1; -; Genomic_DNA.
DR   RefSeq; WP_012185586.1; NC_009954.1.
DR   AlphaFoldDB; A8MC60; -.
DR   SMR; A8MC60; -.
DR   STRING; 397948.Cmaq_0521; -.
DR   PRIDE; A8MC60; -.
DR   EnsemblBacteria; ABW01366; ABW01366; Cmaq_0521.
DR   GeneID; 5709170; -.
DR   KEGG; cma:Cmaq_0521; -.
DR   eggNOG; arCOG04542; Archaea.
DR   HOGENOM; CLU_049768_3_3_2; -.
DR   OMA; CEHMCMS; -.
DR   OrthoDB; 84114at2157; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000001137; 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; IPR020602; GTP_CycHdrlase_I_dom.
DR   PANTHER; PTHR11109; PTHR11109; 1.
DR   Pfam; PF01227; GTP_cyclohydroI; 1.
PE   3: Inferred from homology;
KW   GTP-binding; Hydrolase; Metal-binding; Nucleotide-binding;
KW   One-carbon metabolism; Reference proteome; Zinc.
FT   CHAIN           1..188
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000100165"
FT   BINDING         73
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         76
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         144
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   188 AA;  21219 MW;  0F07E510A1E8467D CRC64;
     MGVNKALIKQ AVKQILVAIG EDPEREGLRR TPDRVANMLE ELTNGREENV QYTLFEGSSN
     MVIVAGIRFS TLCEHHLLPM LGVTHVAYIP SDKVIGVSKI PRIVVKYSRM LQLQERLTRQ
     IMNEVSSATG SGDVMVLTEA YHTCMMIRGV RSASPLVSMA YKGKFNDSSL RLEFLEYIRP
     FRLNKFLT