ID   GCH4_DESPS              Reviewed;         251 AA.
AC   Q6AMT5;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2004, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=GTP cyclohydrolase FolE2 {ECO:0000255|HAMAP-Rule:MF_01527};
DE            EC=3.5.4.16 {ECO:0000255|HAMAP-Rule:MF_01527};
GN   Name=folE2 {ECO:0000255|HAMAP-Rule:MF_01527}; OrderedLocusNames=DP1611;
OS   Desulfotalea psychrophila (strain LSv54 / DSM 12343).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales;
OC   Desulfocapsaceae; Desulfotalea.
OX   NCBI_TaxID=177439;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 12343 / LSv54;
RX   PubMed=15305914; DOI=10.1111/j.1462-2920.2004.00665.x;
RA   Rabus R., Ruepp A., Frickey T., Rattei T., Fartmann B., Stark M., Bauer M.,
RA   Zibat A., Lombardot T., Becker I., Amann J., Gellner K., Teeling H.,
RA   Leuschner W.D., Gloeckner F.-O., Lupas A.N., Amann R., Klenk H.-P.;
RT   "The genome of Desulfotalea psychrophila, a sulfate-reducing bacterium from
RT   permanently cold Arctic sediments.";
RL   Environ. Microbiol. 6:887-902(2004).
CC   -!- FUNCTION: Converts GTP to 7,8-dihydroneopterin triphosphate.
CC       {ECO:0000255|HAMAP-Rule:MF_01527}.
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_01527};
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_01527}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase IV family.
CC       {ECO:0000255|HAMAP-Rule:MF_01527}.
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DR   EMBL; CR522870; CAG36340.1; -; Genomic_DNA.
DR   RefSeq; WP_011188852.1; NC_006138.1.
DR   AlphaFoldDB; Q6AMT5; -.
DR   SMR; Q6AMT5; -.
DR   STRING; 177439.DP1611; -.
DR   EnsemblBacteria; CAG36340; CAG36340; DP1611.
DR   KEGG; dps:DP1611; -.
DR   eggNOG; COG1469; Bacteria.
DR   HOGENOM; CLU_062816_1_1_7; -.
DR   OMA; AKGIHMS; -.
DR   OrthoDB; 757842at2; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000000602; Chromosome.
DR   GO; GO:0003934; F:GTP cyclohydrolase I activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0035998; P:7,8-dihydroneopterin 3'-triphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   HAMAP; MF_01527_B; GTP_cyclohydrol_B; 1.
DR   InterPro; IPR022838; GTP_cyclohydrolase_FolE2.
DR   InterPro; IPR003801; GTP_cyclohydrolase_FolE2/MptA.
DR   PANTHER; PTHR36445; PTHR36445; 1.
DR   Pfam; PF02649; GCHY-1; 1.
DR   TIGRFAMs; TIGR00294; TIGR00294; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Reference proteome.
FT   CHAIN           1..251
FT                   /note="GTP cyclohydrolase FolE2"
FT                   /id="PRO_0000147708"
FT   SITE            137
FT                   /note="May be catalytically important"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01527"
SQ   SEQUENCE   251 AA;  28093 MW;  F4266DE5B6EDF84C CRC64;
     MSKKQSTICQ KVGIADLEIP IILGQKDGKL QHSIASCKIT ATIKETLKGD ISGEVQRLLP
     SFTKEIEPKS WHRLLEEFKE NIGVEKITLS LSCPFFVSKK APVSELRGLM EYNCTFSAST
     GESGITTSLY VPVTTLCPCS KEISDGGAHN QRAEAIFRVE MKEHLWLEDL IQLVEESASC
     QVYSVLKRPD EKYVTEKAFD NPMFVEDVVR KIAVRAGEHP LIHAFSISVE SFESIHKHNA
     YAYVNSEDLN L