ID   GCH1_BREBN              Reviewed;         187 AA.
AC   C0ZCC7;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   26-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 65.
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=BBR47_24590;
OS   Brevibacillus brevis (strain 47 / JCM 6285 / NBRC 100599).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Paenibacillaceae; Brevibacillus.
OX   NCBI_TaxID=358681;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=47 / JCM 6285 / NBRC 100599;
RA   Hosoyama A., Yamada R., Hongo Y., Terui Y., Ankai A., Masuyama W.,
RA   Sekiguchi M., Takeda T., Asano K., Ohji S., Ichikawa N., Narita S.,
RA   Aoki N., Miura H., Matsushita S., Sekigawa T., Yamagata H., Yoshikawa H.,
RA   Udaka S., Tanikawa S., Fujita N.;
RT   "Brevibacillus brevis strain 47, complete genome.";
RL   Submitted (MAR-2005) 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: Homomer. {ECO:0000255|HAMAP-Rule:MF_00223}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family.
CC       {ECO:0000255|HAMAP-Rule:MF_00223}.
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DR   EMBL; AP008955; BAH43436.1; -; Genomic_DNA.
DR   AlphaFoldDB; C0ZCC7; -.
DR   SMR; C0ZCC7; -.
DR   STRING; 358681.BBR47_24590; -.
DR   EnsemblBacteria; BAH43436; BAH43436; BBR47_24590.
DR   KEGG; bbe:BBR47_24590; -.
DR   eggNOG; COG0302; Bacteria.
DR   HOGENOM; CLU_049768_3_3_9; -.
DR   OMA; CEHMCMS; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000001877; 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; Reference proteome; Zinc.
FT   CHAIN           1..187
FT                   /note="GTP cyclohydrolase 1"
FT                   /id="PRO_1000124910"
FT   BINDING         78
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         81
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
FT   BINDING         150
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00223"
SQ   SEQUENCE   187 AA;  21004 MW;  C02A76CCFAEA4257 CRC64;
     MMNVDLDKIQ QAVRMILEAV GDDPDREGVL DTPKRVAKMY AEVFEGMHID EEQYFETVFS
     EDHEEMVLVK DIPFYSMCEH HLVPFFGKAH VAYVPRGGRV VGLSKLARAV DTVAKRPQLQ
     ERITATVADS IMRKLDPHGV VVVVEAEHMC MTMRGVKKPG SKTITSAVRG MFEKDAAARA
     EVISLMR