ID T1BYK0_9ZZZZ Unreviewed; 183 AA.
AC T1BYK0;
DT 16-OCT-2013, integrated into UniProtKB/TrEMBL.
DT 16-OCT-2013, sequence version 1.
DT 27-MAR-2024, entry version 19.
DE RecName: Full=GTP cyclohydrolase II {ECO:0000256|ARBA:ARBA00012762};
DE EC=3.5.4.25 {ECO:0000256|ARBA:ARBA00012762};
GN ORFNames=B1B_08373 {ECO:0000313|EMBL:EQD59000.1};
OS mine drainage metagenome.
OC unclassified sequences; metagenomes; ecological metagenomes.
OX NCBI_TaxID=410659 {ECO:0000313|EMBL:EQD59000.1};
RN [1] {ECO:0000313|EMBL:EQD59000.1}
RP NUCLEOTIDE SEQUENCE.
RA Mendez C., Richter M., Ferrer M., Sanchez J.;
RL Submitted (AUG-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:EQD59000.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=24430486; DOI=10.1038/ismej.2013.242;
RA Mendez-Garcia C., Mesa V., Sprenger R.R., Richter M., Diez M.S., Solano J.,
RA Bargiela R., Golyshina O.V., Manteca A., Ramos J.L., Gallego J.R.,
RA Llorente I., Martins Dos Santos V.A., Jensen O.N., Pelaez A.I., Sanchez J.,
RA Ferrer M.;
RT "Microbial stratification in low pH oxic and suboxic macroscopic growths
RT along an acid mine drainage.";
RL ISME J. 8:1259-1274(2014).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + 4 H2O = 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)-
CC pyrimidine + formate + 3 H(+) + 2 phosphate; Xref=Rhea:RHEA:23704,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15740,
CC ChEBI:CHEBI:37565, ChEBI:CHEBI:43474, ChEBI:CHEBI:58614; EC=3.5.4.25;
CC Evidence={ECO:0000256|ARBA:ARBA00029293};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|ARBA:ARBA00001947};
CC -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 5-amino-6-(D-
CC ribitylamino)uracil from GTP: step 1/4.
CC {ECO:0000256|ARBA:ARBA00004853}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EQD59000.1}.
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DR EMBL; AUZY01005452; EQD59000.1; -; Genomic_DNA.
DR AlphaFoldDB; T1BYK0; -.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-KW.
DR CDD; cd00641; GTP_cyclohydro2; 1.
DR Gene3D; 3.40.50.10990; GTP cyclohydrolase II; 1.
DR InterPro; IPR032677; GTP_cyclohydro_II.
DR InterPro; IPR000926; RibA.
DR InterPro; IPR036144; RibA-like_sf.
DR NCBIfam; TIGR00505; ribA; 1.
DR PANTHER; PTHR21327:SF18; 3,4-DIHYDROXY-2-BUTANONE 4-PHOSPHATE SYNTHASE; 1.
DR PANTHER; PTHR21327; GTP CYCLOHYDROLASE II-RELATED; 1.
DR Pfam; PF00925; GTP_cyclohydro2; 1.
DR SUPFAM; SSF142695; RibA-like; 1.
PE 4: Predicted;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000313|EMBL:EQD59000.1};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 2..150
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
SQ SEQUENCE 183 AA; 19811 MW; D5708485AF483016 CRC64;
MVFESVLDGE QHLALVYGEL GDGHEVLVRV HSECLTGDVM GSLRCDCGPQ LHTAMAKIAA
EGAGVVVYLR GHEGRGIGLG HKIRAYALQE EGRDTVDANV ELGLPVDSRE YGIGAQILVD
LGVRSMRLMT NNPAKYGGLE GFGLNIVERV AIESHPTSFN IDYLRTKRER MGHLLGGLDD
VDD
//
