ID   GCH4_SYNAS              Reviewed;         255 AA.
AC   Q2LUP0;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   21-FEB-2006, sequence version 1.
DT   25-MAY-2022, entry version 80.
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};
GN   OrderedLocusNames=SYNAS_19170; ORFNames=SYN_01308;
OS   Syntrophus aciditrophicus (strain SB).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Syntrophales; Syntrophaceae;
OC   Syntrophus.
OX   NCBI_TaxID=56780;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SB;
RX   PubMed=17442750; DOI=10.1073/pnas.0610456104;
RA   McInerney M.J., Rohlin L., Mouttaki H., Kim U., Krupp R.S.,
RA   Rios-Hernandez L., Sieber J., Struchtemeyer C.G., Bhattacharyya A.,
RA   Campbell J.W., Gunsalus R.P.;
RT   "The genome of Syntrophus aciditrophicus: life at the thermodynamic limit
RT   of microbial growth.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:7600-7605(2007).
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; CP000252; ABC77796.1; -; Genomic_DNA.
DR   RefSeq; WP_011417817.1; NC_007759.1.
DR   AlphaFoldDB; Q2LUP0; -.
DR   SMR; Q2LUP0; -.
DR   STRING; 56780.SYN_01308; -.
DR   EnsemblBacteria; ABC77796; ABC77796; SYN_01308.
DR   KEGG; sat:SYN_01308; -.
DR   eggNOG; COG1469; Bacteria.
DR   HOGENOM; CLU_062816_1_1_7; -.
DR   OMA; PCSQGMS; -.
DR   OrthoDB; 757842at2; -.
DR   UniPathway; UPA00848; UER00151.
DR   Proteomes; UP000001933; 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.
PE   3: Inferred from homology;
KW   Hydrolase; Reference proteome.
FT   CHAIN           1..255
FT                   /note="GTP cyclohydrolase FolE2"
FT                   /id="PRO_0000289528"
FT   SITE            145
FT                   /note="May be catalytically important"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01527"
SQ   SEQUENCE   255 AA;  29293 MW;  108861A3C36EA17E CRC64;
     MIDIQNLEDH RKINIQKVGV KGINYPIVVL DKAKGTQHVN ASINMYVDLP HHFKGTHMSR
     FIEVLNEFRG EINIRTFHTI LEKVRDKLKA ESAHMEITFP YFIEKTAPVS GAKSLMDYIC
     AFSGMNAENK KDFLVGVVVP VTTVCPCSKE ISCMGAHNQR SHVTVKVRFK KFFWLEDIIR
     LVETSASGEV YSLLKRVDEK YVTEQGYANP MFVEDVVRNV AERLNENSNL TWYSVEAENF
     ESIHNHNAYA YVEKE