ID   GCH1_PORG3              Reviewed;         193 AA.
AC   B2RIJ1;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 74.
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=PGN_0667;
OS   Porphyromonas gingivalis (strain ATCC 33277 / DSM 20709 / CIP 103683 / JCM
OS   12257 / NCTC 11834 / 2561).
OC   Bacteria; Bacteroidetes; Bacteroidia; Bacteroidales; Porphyromonadaceae;
OC   Porphyromonas.
OX   NCBI_TaxID=431947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33277 / DSM 20709 / CIP 103683 / JCM 12257 / NCTC 11834 / 2561;
RX   PubMed=18524787; DOI=10.1093/dnares/dsn013;
RA   Naito M., Hirakawa H., Yamashita A., Ohara N., Shoji M., Yukitake H.,
RA   Nakayama K., Toh H., Yoshimura F., Kuhara S., Hattori M., Hayashi T.,
RA   Nakayama K.;
RT   "Determination of the genome sequence of Porphyromonas gingivalis strain
RT   ATCC 33277 and genomic comparison with strain W83 revealed extensive genome
RT   rearrangements in P. gingivalis.";
RL   DNA Res. 15:215-225(2008).
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; AP009380; BAG33186.1; -; Genomic_DNA.
DR   RefSeq; WP_004585175.1; NZ_CP025930.1.
DR   AlphaFoldDB; B2RIJ1; -.
DR   SMR; B2RIJ1; -.
DR   STRING; 431947.PGN_0667; -.
DR   EnsemblBacteria; BAG33186; BAG33186; PGN_0667.
DR   GeneID; 57240664; -.
DR   KEGG; pgn:PGN_0667; -.
DR   eggNOG; COG0302; Bacteria.
DR   HOGENOM; CLU_049768_2_0_10; -.
DR   OMA; CEHMCMS; -.
DR   BioCyc; PGIN431947:G1G2V-732-MON; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000008842; 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.
DR   PROSITE; PS00860; GTP_CYCLOHYDROL_1_2; 1.
PE   3: Inferred from homology;
KW   GTP-binding; Hydrolase; Metal-binding; Nucleotide-binding;
KW   One-carbon metabolism; Zinc.
FT   CHAIN           1..193
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000100188"
FT   BINDING         83
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         86
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         154
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   193 AA;  22302 MW;  0ACC84E494B41560 CRC64;
     MTEIEKEEAC SRLQQHYAQV LSLLGEDPKR EGLLKTPLRV AKAMQFLTKG YNEDPEAILR
     AAMFEEDYQQ MVIVKDIDFF SMCEHHMLPF FGKAHVGYIP NRYITGLSKL PRVVDVFARR
     LQVQERLTTQ IKECIQNTLN PLGVIVVIEA QHMCMQMRGV EKQNSLTTTS DFTGAFEEST
     TREEFLNLIG RRR