ID   GCH1_DEHMB              Reviewed;         189 AA.
AC   A5FQD3;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   27-MAR-2024, entry version 86.
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};
GN   OrderedLocusNames=DehaBAV1_1014;
OS   Dehalococcoides mccartyi (strain ATCC BAA-2100 / JCM 16839 / KCTC 5957 /
OS   BAV1).
OC   Bacteria; Chloroflexota; Dehalococcoidia; Dehalococcoidales;
OC   Dehalococcoidaceae; Dehalococcoides.
OX   NCBI_TaxID=216389;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-2100 / JCM 16839 / KCTC 5957 / BAV1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Lowry S., Clum A.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Ritalahti K.M., Loeffler F., Richardson P.;
RT   "Complete sequence of Dehalococcoides sp. BAV1.";
RL   Submitted (MAY-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; CP000688; ABQ17594.1; -; Genomic_DNA.
DR   AlphaFoldDB; A5FQD3; -.
DR   SMR; A5FQD3; -.
DR   KEGG; deb:DehaBAV1_1014; -.
DR   PATRIC; fig|216389.18.peg.1069; -.
DR   HOGENOM; CLU_049768_3_3_0; -.
DR   UniPathway; UPA00848; UER00151.
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   NCBIfam; TIGR00063; folE; 1.
DR   PANTHER; PTHR11109:SF7; GTP CYCLOHYDROLASE 1; 1.
DR   PANTHER; PTHR11109; GTP CYCLOHYDROLASE I; 1.
DR   Pfam; PF01227; GTP_cyclohydroI; 1.
DR   SUPFAM; SSF55620; Tetrahydrobiopterin biosynthesis enzymes-like; 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; Zinc.
FT   CHAIN           1..189
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000078140"
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;  21101 MW;  7B550F6EAC52AD89 CRC64;
     MFDEQAIKQS VQNILVAIGE DPDREGLKET PRRVAQMYTE LFSGMNQDPA EVLRVGYELG
     HREMVIIKDI PFYSMCEHHL LPFSGVVHIG YIPNIDGRVV GISKLARVVE IYAKRPQIQE
     RMATQIADAI MDGLKCDGVA VVIEAEHMCM VMRGIKKPGS RVITSALRGS FHKSPAARAE
     FLSLIQHKG
//