ID U1GXN7_ENDPU Unreviewed; 209 AA.
AC U1GXN7;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 27-MAR-2024, entry version 40.
DE RecName: Full=GTP cyclohydrolase II {ECO:0000256|ARBA:ARBA00012762};
DE EC=3.5.4.25 {ECO:0000256|ARBA:ARBA00012762};
GN ORFNames=EPUS_02607 {ECO:0000313|EMBL:ERF76896.1};
OS Endocarpon pusillum (strain Z07020 / HMAS-L-300199) (Lichen-forming
OS fungus).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Chaetothyriomycetidae; Verrucariales; Verrucariaceae; Endocarpon.
OX NCBI_TaxID=1263415 {ECO:0000313|EMBL:ERF76896.1, ECO:0000313|Proteomes:UP000019373};
RN [1] {ECO:0000313|Proteomes:UP000019373}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Z07020 / HMAS-L-300199 {ECO:0000313|Proteomes:UP000019373};
RX PubMed=24438332; DOI=10.1186/1471-2164-15-34;
RA Wang Y.-Y., Liu B., Zhang X.-Y., Zhou Q.-M., Zhang T., Li H., Yu Y.-F.,
RA Zhang X.-L., Hao X.-Y., Wang M., Wang L., Wei J.-C.;
RT "Genome characteristics reveal the impact of lichenization on lichen-
RT forming fungus Endocarpon pusillum Hedwig (Verrucariales, Ascomycota).";
RL BMC Genomics 15:34-34(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 -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005104}.
CC -!- SIMILARITY: Belongs to the GTP cyclohydrolase II family.
CC {ECO:0000256|ARBA:ARBA00008131}.
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DR EMBL; KE720681; ERF76896.1; -; Genomic_DNA.
DR RefSeq; XP_007785721.1; XM_007787531.1.
DR AlphaFoldDB; U1GXN7; -.
DR GeneID; 19237660; -.
DR eggNOG; KOG1284; Eukaryota.
DR HOGENOM; CLU_020273_2_1_1; -.
DR OrthoDB; 1328905at2759; -.
DR Proteomes; UP000019373; Unassembled WGS sequence.
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 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:UP000019373};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 40..167
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT REGION 1..45
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 12..45
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 209 AA; 22969 MW; FB326D85C23EBFC5 CRC64;
MGFVPEEMAA RTGEDGIAEE DGPQPLERPK QHEMSPDEDK PKPPLVRIHS ECYTGETAWS
ARCDCGEQLD EAARLMSLHG GGVIVYLRQE GRGIGLSEKL KAYNLQDLGS DTVEANLLLR
HPADARSYGL ATAILLDLGC GGDQGIRLLT NNPHKVRAVE GPNREVIVRE RVAMIPLAWK
HGGKRGIHSR EIEQYLSTKI GKMGHMISD
//
