ID D8LTI2_ECTSI Unreviewed; 324 AA.
AC D8LTI2;
DT 05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2010, sequence version 1.
DT 27-MAR-2024, entry version 34.
DE RecName: Full=GTP cyclohydrolase II {ECO:0000256|ARBA:ARBA00012762};
DE EC=3.5.4.25 {ECO:0000256|ARBA:ARBA00012762};
GN ORFNames=Esi_0082_0032 {ECO:0000313|EMBL:CBN78023.1};
OS Ectocarpus siliculosus (Brown alga) (Conferva siliculosa).
OC Eukaryota; Sar; Stramenopiles; Ochrophyta; PX clade; Phaeophyceae;
OC Ectocarpales; Ectocarpaceae; Ectocarpus.
OX NCBI_TaxID=2880 {ECO:0000313|EMBL:CBN78023.1, ECO:0000313|Proteomes:UP000002630};
RN [1] {ECO:0000313|EMBL:CBN78023.1, ECO:0000313|Proteomes:UP000002630}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Ec32 / CCAP1310/4 {ECO:0000313|Proteomes:UP000002630};
RX PubMed=20520714; DOI=10.1038/nature09016;
RA Cock J.M., Sterck L., Rouze P., Scornet D., Allen A.E., Amoutzias G.,
RA Anthouard V., Artiguenave F., Aury J.M., Badger J.H., Beszteri B.,
RA Billiau K., Bonnet E., Bothwell J.H., Bowler C., Boyen C., Brownlee C.,
RA Carrano C.J., Charrier B., Cho G.Y., Coelho S.M., Collen J., Corre E.,
RA Da Silva C., Delage L., Delaroque N., Dittami S.M., Doulbeau S., Elias M.,
RA Farnham G., Gachon C.M., Gschloessl B., Heesch S., Jabbari K., Jubin C.,
RA Kawai H., Kimura K., Kloareg B., Kupper F.C., Lang D., Le Bail A.,
RA Leblanc C., Lerouge P., Lohr M., Lopez P.J., Martens C., Maumus F.,
RA Michel G., Miranda-Saavedra D., Morales J., Moreau H., Motomura T.,
RA Nagasato C., Napoli C.A., Nelson D.R., Nyvall-Collen P., Peters A.F.,
RA Pommier C., Potin P., Poulain J., Quesneville H., Read B., Rensing S.A.,
RA Ritter A., Rousvoal S., Samanta M., Samson G., Schroeder D.C., Segurens B.,
RA Strittmatter M., Tonon T., Tregear J.W., Valentin K., von Dassow P.,
RA Yamagishi T., Van de Peer Y., Wincker P.;
RT "The Ectocarpus genome and the independent evolution of multicellularity in
RT brown algae.";
RL Nature 465:617-621(2010).
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 -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005104}.
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DR EMBL; FN649056; CBN78023.1; -; Genomic_DNA.
DR AlphaFoldDB; D8LTI2; -.
DR STRING; 2880.D8LTI2; -.
DR EnsemblProtists; CBN78023; CBN78023; Esi_0082_0032.
DR eggNOG; KOG1284; Eukaryota.
DR InParanoid; D8LTI2; -.
DR OrthoDB; 1328905at2759; -.
DR Proteomes; UP000002630; Chromosome LG15.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:InterPro.
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 HAMAP; MF_00179; RibA; 1.
DR InterPro; IPR032677; GTP_cyclohydro_II.
DR InterPro; IPR000926; RibA.
DR InterPro; IPR036144; RibA-like_sf.
DR PANTHER; PTHR21327; GTP CYCLOHYDROLASE II-RELATED; 1.
DR PANTHER; PTHR21327:SF29; GTP CYCLOHYDROLASE-2; 1.
DR Pfam; PF00925; GTP_cyclohydro2; 1.
DR SUPFAM; SSF142695; RibA-like; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Reference proteome {ECO:0000313|Proteomes:UP000002630};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 132..297
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT REGION 1..24
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 324 AA; 34774 MW; F450B61F810132CB CRC64;
MLSEGVIGDD EPREPSNQDL TSTTGGLGVA SSLACAGVES SLHLFGGVFV GKAAEAYWTA
ILQLRRGDGS CFEDSQTGAA RGDARRADGA IRGLKRKRAG AVAPSDATPR APEGRAAAQA
KAAGHGCTTF VSECSLPTEK GNFRLRAYRY ADGVKTHEPV VMVAGNVRGR ENVPVRVHDQ
CQTSEVLGSK RCDCREQLDL SLRYIQEHGG GAVIYLAQEG RGIGLANKVA AYALQDDGLD
TVEANRQLGF GDDERSYECV EFILGDMEIK SVQLMTNNPF KIDWLRATGV KVEGRIPVEV
PANEHNHGYL EAKASRMSHL INTL
//
