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GCH1_HELHP
ID   GCH1_HELHP              Reviewed;         206 AA.
AC   Q7VFG4;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 102.
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=HH_1712;
OS   Helicobacter hepaticus (strain ATCC 51449 / 3B1).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=235279;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51449 / 3B1;
RX   PubMed=12810954; DOI=10.1073/pnas.1332093100;
RA   Suerbaum S., Josenhans C., Sterzenbach T., Drescher B., Brandt P., Bell M.,
RA   Droege M., Fartmann B., Fischer H.-P., Ge Z., Hoerster A., Holland R.,
RA   Klein K., Koenig J., Macko L., Mendz G.L., Nyakatura G., Schauer D.B.,
RA   Shen Z., Weber J., Frosch M., Fox J.G.;
RT   "The complete genome sequence of the carcinogenic bacterium Helicobacter
RT   hepaticus.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:7901-7906(2003).
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; AE017125; AAP78309.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q7VFG4; -.
DR   SMR; Q7VFG4; -.
DR   STRING; 235279.HH_1712; -.
DR   EnsemblBacteria; AAP78309; AAP78309; HH_1712.
DR   KEGG; hhe:HH_1712; -.
DR   eggNOG; COG0302; Bacteria.
DR   HOGENOM; CLU_049768_3_1_7; -.
DR   OMA; CEHMCMS; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000002495; 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..206
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_0000119412"
FT   BINDING         98
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         101
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         169
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   206 AA;  23262 MW;  2744BA0A94EF9CA7 CRC64;
     MHNAKRAIFK KRENMQKSSH DSILECNAQA FFESLCQNVG ENPTREGLLH TPKRIASAFS
     DMLNGYAKSP KQALGSVFED GVCDEMIVLK KLHFYSICEH HLLPFFGHIS IGYIPDKKLV
     GISGLARLTE VFTHRLQIQE RLTAQIADAL IAELKPKGAM IVCQARHLCL EMRSNVPQSH
     IITSALRGLF KKDSRTRAEF MQILKD
 
 
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