GCH1_RICB8
ID GCH1_RICB8 Reviewed; 192 AA.
AC A8GUB6;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-NOV-2007, sequence version 1.
DT 03-AUG-2022, entry version 78.
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=A1I_05145;
OS Rickettsia bellii (strain OSU 85-389).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; belli group.
OX NCBI_TaxID=391896;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=OSU 85-389;
RA Madan A., Lee H., Madan A., Yoon J.-G., Ryu G.-Y., Dasch G., Ereemeva M.;
RT "Complete genome sequencing of Rickettsia bellii.";
RL Submitted (SEP-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000849; ABV79358.1; -; Genomic_DNA.
DR AlphaFoldDB; A8GUB6; -.
DR SMR; A8GUB6; -.
DR KEGG; rbo:A1I_05145; -.
DR HOGENOM; CLU_049768_3_1_5; -.
DR OMA; CEHMCMS; -.
DR UniPathway; UPA00848; UER00151.
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..192
FT /note="GTP cyclohydrolase 1"
FT /id="PRO_1000043724"
FT BINDING 82
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT BINDING 85
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT BINDING 153
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ SEQUENCE 192 AA; 21913 MW; 38C5BA21904E5764 CRC64;
MTIKKPTKEE AKEAVRTLLR FIGEDPNREG LFKTPDRVIK SYEEIFSGYG KNIEEILETK
FSDTGNFQDF ISLEGIKFTS FCEHHMLPFS GTVHIAYIPD NCIVGISKLA RIVNAFAKRL
QIQEKMTVQI AESVQENLKP LGVAVKISAL HSCMSMRGVM QDNSIMNTMH YTGIFAEQQK
YRHEFLNLTS KK
