ID I1P1I9_ORYGL Unreviewed; 553 AA.
AC I1P1I9;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 27-MAR-2024, entry version 46.
DE RecName: Full=GTP cyclohydrolase II domain-containing protein {ECO:0000259|Pfam:PF00925};
OS Oryza glaberrima (African rice).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Oryzeae; Oryzinae; Oryza.
OX NCBI_TaxID=4538 {ECO:0000313|EnsemblPlants:ORGLA02G0184500.1, ECO:0000313|Proteomes:UP000007306};
RN [1] {ECO:0000313|Proteomes:UP000007306}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IRGC 96717 {ECO:0000313|Proteomes:UP000007306};
RA Wing R.A., Yu Y., Rounsley S., Reddy-Marri P., Goicoechea J.L.,
RA Sisneros N., Lee S., Song X., Angelova A., Kudrna D.P., de Baynast K.,
RA Zuccolo A.;
RT "The complete genome of Oryza glaberrima.";
RL Submitted (JUN-2010) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EnsemblPlants:ORGLA02G0184500.1}
RP IDENTIFICATION.
RG EnsemblPlants;
RL Submitted (JUN-2015) to UniProtKB.
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 C-terminal section; belongs to the GTP
CC cyclohydrolase II family. {ECO:0000256|ARBA:ARBA00008976}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the DHBP synthase
CC family. {ECO:0000256|ARBA:ARBA00005520}.
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DR AlphaFoldDB; I1P1I9; -.
DR STRING; 4538.I1P1I9; -.
DR EnsemblPlants; ORGLA02G0184500.1; ORGLA02G0184500.1; ORGLA02G0184500.
DR Gramene; ORGLA02G0184500.1; ORGLA02G0184500.1; ORGLA02G0184500.
DR eggNOG; KOG1284; Eukaryota.
DR HOGENOM; CLU_020273_1_0_1; -.
DR OMA; GGVHMAM; -.
DR UniPathway; UPA00275; UER00400.
DR Proteomes; UP000007306; 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 HAMAP; MF_00180; RibB; 1.
DR HAMAP; MF_01283; RibBA; 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 InterPro; IPR016299; Riboflavin_synth_RibBA.
DR NCBIfam; TIGR00505; ribA; 1.
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 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 Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 345..509
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT REGION 64..90
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 74..89
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 553 AA; 59820 MW; CFF99077DB43247D CRC64;
LVTSELLSEL HNTVEIRSVQ FVKGGAVSKE AKGSISFSPV ANSNNANVKF TGLRVAASLK
RDGAFPGDGY SGNDNTVLPK STSVRGQDYP TADSVLPTES VIVPEISNAG LKCVADMFSD
EDKDTEQDLD SPTEGFSSIS EAIKDIQQGK LVIVVDDESR ENEGDLIMAA SLVTPEAMAF
VVRYGTGIVC VSMKEEDLER LNLPLMVATK ENEEKLCTAF TVTVDAKEGT TTGVSATDRA
KTVMTLASPD SKPEDFNRPG HIFPLKYREG GVLKRAGHTE ASVDLAMLAG LPPAAVLCEI
VDEDGSMARL PKLRVFAERE NLKIVSIADL IRYRRKRDRL VERSSVARLP LRWGNVRAYC
YRSVIDGIEH IAMVKGEIGD GQGVLVRVHS ECLTGDIFGS ARCDCGDQLA MAMEMIEKAG
RGVLVYLRGH EGRGIGLGHK LRAYNLQDDG RDTVEANEDL GLPVDSREYG IGAQILRDLG
VRSMKLMTNN PAKYGGLKGY GLSIVGRVPL VTPITSENRR YLETKRTKMG HVYGLANGQA
SHQTGSNGAK GEH
//
