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GCH1_STRPN
ID   GCH1_STRPN              Reviewed;         184 AA.
AC   P51595;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   26-SEP-2001, sequence version 2.
DT   03-AUG-2022, entry version 128.
DE   RecName: Full=GTP cyclohydrolase 1;
DE            EC=3.5.4.16;
DE   AltName: Full=GTP cyclohydrolase I;
DE            Short=GTP-CH-I;
GN   Name=folE; Synonyms=sulC; OrderedLocusNames=SP_0291;
OS   Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=170187;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=772;
RX   PubMed=7798151; DOI=10.1128/jb.177.1.66-74.1995;
RA   Lacks S.A., Greenberg B., Lopez P.;
RT   "A cluster of four genes encoding enzymes for five steps in the folate
RT   biosynthetic pathway of Streptococcus pneumoniae.";
RL   J. Bacteriol. 177:66-74(1995).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-334 / TIGR4;
RX   PubMed=11463916; DOI=10.1126/science.1061217;
RA   Tettelin H., Nelson K.E., Paulsen I.T., Eisen J.A., Read T.D.,
RA   Peterson S.N., Heidelberg J.F., DeBoy R.T., Haft D.H., Dodson R.J.,
RA   Durkin A.S., Gwinn M.L., Kolonay J.F., Nelson W.C., Peterson J.D.,
RA   Umayam L.A., White O., Salzberg S.L., Lewis M.R., Radune D.,
RA   Holtzapple E.K., Khouri H.M., Wolf A.M., Utterback T.R., Hansen C.L.,
RA   McDonald L.A., Feldblyum T.V., Angiuoli S.V., Dickinson T., Hickey E.K.,
RA   Holt I.E., Loftus B.J., Yang F., Smith H.O., Venter J.C., Dougherty B.A.,
RA   Morrison D.A., Hollingshead S.K., Fraser C.M.;
RT   "Complete genome sequence of a virulent isolate of Streptococcus
RT   pneumoniae.";
RL   Science 293:498-506(2001).
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   -!- PATHWAY: Cofactor biosynthesis; 7,8-dihydroneopterin triphosphate
CC       biosynthesis; 7,8-dihydroneopterin triphosphate from GTP: step 1/1.
CC   -!- SUBUNIT: Toroid-shaped homodecamer, composed of two pentamers of five
CC       dimers. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family. {ECO:0000305}.
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DR   EMBL; U16156; AAB63946.1; -; Genomic_DNA.
DR   EMBL; AE005672; AAK74469.1; -; Genomic_DNA.
DR   PIR; D95034; D95034.
DR   PIR; D97905; D97905.
DR   RefSeq; WP_000380916.1; NZ_AKVY01000001.1.
DR   AlphaFoldDB; P51595; -.
DR   SMR; P51595; -.
DR   STRING; 170187.SP_0291; -.
DR   EnsemblBacteria; AAK74469; AAK74469; SP_0291.
DR   GeneID; 45217820; -.
DR   KEGG; spn:SP_0291; -.
DR   eggNOG; COG0302; Bacteria.
DR   OMA; CEHMCMS; -.
DR   PhylomeDB; P51595; -.
DR   BioCyc; SPNE170187:G1FZB-300-MON; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000000585; 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..184
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_0000119449"
FT   BINDING         75
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         78
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         146
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   CONFLICT        139
FT                   /note="V -> I (in Ref. 1; AAB63946)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   184 AA;  20714 MW;  453B888BB79BF484 CRC64;
     MDTQKIEAAV KMIIEAVGED ANREGLQETP ARVARMYQEI FSGLGQTAEE HLSKSFEIID
     DNMVVEKDIF FHTMCEHHFL PFYGRAHIAY IPDGRVAGLS KLARTVEVYS KKPQIQERLN
     IEVADALMDY LGAKGAFVVI EAEHMCMSMR GVRKPGTATL TTVARGLFET DKDLRDQAYR
     LMGL
 
 
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