ID   GCH1_PECAS              Reviewed;         220 AA.
AC   Q6D3N3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 1.
DT   27-MAR-2024, entry version 104.
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=ECA2711;
OS   Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) (Erwinia
OS   carotovora subsp. atroseptica).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Pectobacteriaceae; Pectobacterium.
OX   NCBI_TaxID=218491;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SCRI 1043 / ATCC BAA-672;
RX   PubMed=15263089; DOI=10.1073/pnas.0402424101;
RA   Bell K.S., Sebaihia M., Pritchard L., Holden M.T.G., Hyman L.J.,
RA   Holeva M.C., Thomson N.R., Bentley S.D., Churcher L.J.C., Mungall K.,
RA   Atkin R., Bason N., Brooks K., Chillingworth T., Clark K., Doggett J.,
RA   Fraser A., Hance Z., Hauser H., Jagels K., Moule S., Norbertczak H.,
RA   Ormond D., Price C., Quail M.A., Sanders M., Walker D., Whitehead S.,
RA   Salmond G.P.C., Birch P.R.J., Parkhill J., Toth I.K.;
RT   "Genome sequence of the enterobacterial phytopathogen Erwinia carotovora
RT   subsp. atroseptica and characterization of virulence factors.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:11105-11110(2004).
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; BX950851; CAG75611.1; -; Genomic_DNA.
DR   RefSeq; WP_011094252.1; NC_004547.2.
DR   AlphaFoldDB; Q6D3N3; -.
DR   SMR; Q6D3N3; -.
DR   STRING; 218491.ECA2711; -.
DR   GeneID; 57208598; -.
DR   KEGG; eca:ECA2711; -.
DR   eggNOG; COG0302; Bacteria.
DR   HOGENOM; CLU_049768_3_2_6; -.
DR   OrthoDB; 9801207at2; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000007966; 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   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.
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; Reference proteome; Zinc.
FT   CHAIN           1..220
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000043692"
FT   BINDING         109
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         112
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         180
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   220 AA;  24570 MW;  19FF789E247444C2 CRC64;
     MSSLSKEAVM VHEALLARGL ETPLRGALLD RDTRKQRIAE HMTEIMNLLS LDLGDDSLAE
     TPTRIAKMYV DEIFSGLDYA NFPKITIIEN KMKVDEMVTV RDITLTSTCE HHFVMIDGKA
     TVAYIPKDGV IGLSKLNRIV QFFSQRPQVQ ERLTQQILVA LQTLLGTNNV AVSIDAVHYC
     VKARGIRDAT SATTTTSLGG LFKSSQNTRQ EFLRAVRHHN
//