ID F0Y0P7_AURAN Unreviewed; 409 AA.
AC F0Y0P7;
DT 03-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 03-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 50.
DE RecName: Full=GTP cyclohydrolase II domain-containing protein {ECO:0000259|Pfam:PF00925};
GN ORFNames=AURANDRAFT_20787 {ECO:0000313|EMBL:EGB11708.1};
OS Aureococcus anophagefferens (Harmful bloom alga).
OC Eukaryota; Sar; Stramenopiles; Ochrophyta; Pelagophyceae; Pelagomonadales;
OC Aureococcus.
OX NCBI_TaxID=44056 {ECO:0000313|Proteomes:UP000002729};
RN [1] {ECO:0000313|EMBL:EGB11708.1, ECO:0000313|Proteomes:UP000002729}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCMP 1984 {ECO:0000313|Proteomes:UP000002729};
RX PubMed=21368207; DOI=10.1073/pnas.1016106108;
RA Gobler C.J., Berry D.L., Dyhrman S.T., Wilhelm S.W., Salamov A.,
RA Lobanov A.V., Zhang Y., Collier J.L., Wurch L.L., Kustka A.B., Dill B.D.,
RA Shah M., VerBerkmoes N.C., Kuo A., Terry A., Pangilinan J., Lindquist E.A.,
RA Lucas S., Paulsen I.T., Hattenrath-Lehmann T.K., Talmage S.C., Walker E.A.,
RA Koch F., Burson A.M., Marcoval M.A., Tang Y.Z., Lecleir G.R., Coyne K.J.,
RA Berg G.M., Bertrand E.M., Saito M.A., Gladyshev V.N., Grigoriev I.V.;
RT "Niche of harmful alga Aureococcus anophagefferens revealed through
RT ecogenomics.";
RL Proc. Natl. Acad. Sci. U.S.A. 108:4352-4357(2011).
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; 2-hydroxy-3-
CC oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1.
CC {ECO:0000256|ARBA:ARBA00004904}.
CC -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 5-amino-6-(D-
CC ribitylamino)uracil from GTP: step 1/4.
CC {ECO:0000256|ARBA:ARBA00004853}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the DHBP synthase
CC family. {ECO:0000256|ARBA:ARBA00005520}.
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DR EMBL; GL833122; EGB11708.1; -; Genomic_DNA.
DR RefSeq; XP_009034049.1; XM_009035801.1.
DR AlphaFoldDB; F0Y0P7; -.
DR EnsemblProtists; EGB11708; EGB11708; AURANDRAFT_20787.
DR GeneID; 20219348; -.
DR KEGG; aaf:AURANDRAFT_20787; -.
DR eggNOG; KOG1284; Eukaryota.
DR InParanoid; F0Y0P7; -.
DR OMA; ECRGLIC; -.
DR OrthoDB; 1328905at2759; -.
DR UniPathway; UPA00275; UER00400.
DR Proteomes; UP000002729; Unassembled WGS sequence.
DR GO; GO:0008686; F:3,4-dihydroxy-2-butanone-4-phosphate synthase activity; IEA:InterPro.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00641; GTP_cyclohydro2; 1.
DR Gene3D; 3.90.870.10; DHBP synthase; 1.
DR Gene3D; 3.40.50.10990; GTP cyclohydrolase II; 1.
DR HAMAP; MF_00179; RibA; 1.
DR InterPro; IPR017945; DHBP_synth_RibB-like_a/b_dom.
DR InterPro; IPR000422; DHBP_synthase_RibB.
DR InterPro; IPR032677; GTP_cyclohydro_II.
DR InterPro; IPR000926; RibA.
DR InterPro; IPR036144; RibA-like_sf.
DR NCBIfam; TIGR00506; ribB; 1.
DR PANTHER; PTHR21327:SF18; 3,4-DIHYDROXY-2-BUTANONE 4-PHOSPHATE SYNTHASE; 1.
DR PANTHER; PTHR21327; GTP CYCLOHYDROLASE II-RELATED; 1.
DR Pfam; PF00926; DHBP_synthase; 1.
DR Pfam; PF00925; GTP_cyclohydro2; 1.
DR PIRSF; PIRSF001259; RibA; 1.
DR SUPFAM; SSF142695; RibA-like; 1.
DR SUPFAM; SSF55821; YrdC/RibB; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Reference proteome {ECO:0000313|Proteomes:UP000002729};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 204..379
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT REGION 242..266
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 242..256
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 409 AA; 43882 MW; DEC22A8BF092E069 CRC64;
MRRGEPVVVT DDADRENEGD LIFAAETATA ETLAFTVRHT SGVICVAMPG DRLDELRLGP
MVAKNEDPKG TAFAVSVDLL GGDMTTGISA SDRARTLRAL ADPRSGHERF CRPGHLFPLR
ARPGGTLERG GHTEASVDLA RLAGLAPAGA LCEIVRDEDG EMARWDDLGE FAKTHNLAFT
TIADIQQYRR SPEPYPLVLE RGTMTRMPTA YGDFDAVVFA DVASGLEHVA LLKGDLGELA
NADRRDIPRP ERRKPSTAPP PECATGDIFG SRRCDCGEQL QRSLELVRAS GGVLLYLRGH
EGRGIGLGAK LRAYALQDRG RDTIEANADQ GLPVEARTYG AAAAMLRDLG VDAVRLLTNN
PAKCDALAAF GIAVAARVPL VTTPNEDNVA YLRTKQARMG HDLGLPEAP
//
