ID   GCH4_VESOH              Reviewed;         264 AA.
AC   A5CXA1;
DT   24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=GTP cyclohydrolase FolE2 {ECO:0000255|HAMAP-Rule:MF_01527};
DE            EC=3.5.4.16 {ECO:0000255|HAMAP-Rule:MF_01527};
GN   Name=folE2 {ECO:0000255|HAMAP-Rule:MF_01527}; OrderedLocusNames=COSY_0286;
OS   Vesicomyosocius okutanii subsp. Calyptogena okutanii (strain HA).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; sulfur-oxidizing symbionts;
OC   Candidatus Vesicomyosocius.
OX   NCBI_TaxID=412965;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HA;
RX   PubMed=17493812; DOI=10.1016/j.cub.2007.04.039;
RA   Kuwahara H., Yoshida T., Takaki Y., Shimamura S., Nishi S., Harada M.,
RA   Matsuyama K., Takishita K., Kawato M., Uematsu K., Fujiwara Y., Sato T.,
RA   Kato C., Kitagawa M., Kato I., Maruyama T.;
RT   "Reduced genome of the thioautotrophic intracellular symbiont in a deep-sea
RT   clam, Calyptogena okutanii.";
RL   Curr. Biol. 17:881-886(2007).
CC   -!- FUNCTION: Converts GTP to 7,8-dihydroneopterin triphosphate.
CC       {ECO:0000255|HAMAP-Rule:MF_01527}.
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_01527};
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_01527}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase IV family.
CC       {ECO:0000255|HAMAP-Rule:MF_01527}.
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DR   EMBL; AP009247; BAF61415.1; -; Genomic_DNA.
DR   RefSeq; WP_011929685.1; NC_009465.1.
DR   AlphaFoldDB; A5CXA1; -.
DR   SMR; A5CXA1; -.
DR   STRING; 412965.COSY_0286; -.
DR   EnsemblBacteria; BAF61415; BAF61415; COSY_0286.
DR   KEGG; vok:COSY_0286; -.
DR   eggNOG; COG1469; Bacteria.
DR   HOGENOM; CLU_062816_1_1_6; -.
DR   OMA; PCSQGMS; -.
DR   OrthoDB; 757842at2; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000000247; Chromosome.
DR   GO; GO:0003934; F:GTP cyclohydrolase I activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0035998; P:7,8-dihydroneopterin 3'-triphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   HAMAP; MF_01527_B; GTP_cyclohydrol_B; 1.
DR   InterPro; IPR022838; GTP_cyclohydrolase_FolE2.
DR   InterPro; IPR003801; GTP_cyclohydrolase_FolE2/MptA.
DR   PANTHER; PTHR36445; PTHR36445; 1.
DR   Pfam; PF02649; GCHY-1; 1.
DR   TIGRFAMs; TIGR00294; TIGR00294; 1.
PE   3: Inferred from homology;
KW   Hydrolase.
FT   CHAIN           1..264
FT                   /note="GTP cyclohydrolase FolE2"
FT                   /id="PRO_0000297507"
FT   SITE            150
FT                   /note="May be catalytically important"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01527"
SQ   SEQUENCE   264 AA;  29857 MW;  24EEA758A07E1F35 CRC64;
     MSATHLPDTQ NSADTRHIII DKVGIKDIIH PITYIDCDGN KMPTIGMFTM TVSLPEHVKG
     THMSRFIEIL NENSCEFSAH NFDQIIDKVK EKLESDTAHI TLNFPFFRKK EAPSSGVKSM
     MDYQVTLYGT LNKGEVQVMI KVVVPVTSLC PCSKSISKYG AHNQRSHITI KAKVSKGRTL
     HIEDLIDLAE RKASCELYAL LKRDDEKMVT ERAYDNPAFV EDLVRDIAVD LNADDKISYY
     CLESENFESI HNHSAYALIE NLKC