ITPA_PHYIT
ID ITPA_PHYIT Reviewed; 191 AA.
AC D0MY11;
DT 19-OCT-2011, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2009, sequence version 1.
DT 03-AUG-2022, entry version 65.
DE RecName: Full=Inosine triphosphate pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE Short=ITPase {ECO:0000255|HAMAP-Rule:MF_03148};
DE Short=Inosine triphosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE EC=3.6.1.9 {ECO:0000255|HAMAP-Rule:MF_03148};
DE AltName: Full=Non-canonical purine NTP pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE AltName: Full=Non-standard purine NTP pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE AltName: Full=Nucleoside-triphosphate diphosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE AltName: Full=Nucleoside-triphosphate pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_03148};
DE Short=NTPase {ECO:0000255|HAMAP-Rule:MF_03148};
GN ORFNames=PITG_03601;
OS Phytophthora infestans (strain T30-4) (Potato late blight agent).
OC Eukaryota; Sar; Stramenopiles; Oomycota; Peronosporales; Peronosporaceae;
OC Phytophthora.
OX NCBI_TaxID=403677;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=T30-4;
RX PubMed=19741609; DOI=10.1038/nature08358;
RG The Broad Institute Genome Sequencing Platform;
RA Haas B.J., Kamoun S., Zody M.C., Jiang R.H., Handsaker R.E., Cano L.M.,
RA Grabherr M., Kodira C.D., Raffaele S., Torto-Alalibo T., Bozkurt T.O.,
RA Ah-Fong A.M., Alvarado L., Anderson V.L., Armstrong M.R., Avrova A.,
RA Baxter L., Beynon J., Boevink P.C., Bollmann S.R., Bos J.I., Bulone V.,
RA Cai G., Cakir C., Carrington J.C., Chawner M., Conti L., Costanzo S.,
RA Ewan R., Fahlgren N., Fischbach M.A., Fugelstad J., Gilroy E.M., Gnerre S.,
RA Green P.J., Grenville-Briggs L.J., Griffith J., Grunwald N.J., Horn K.,
RA Horner N.R., Hu C.H., Huitema E., Jeong D.H., Jones A.M., Jones J.D.,
RA Jones R.W., Karlsson E.K., Kunjeti S.G., Lamour K., Liu Z., Ma L.,
RA Maclean D., Chibucos M.C., McDonald H., McWalters J., Meijer H.J.,
RA Morgan W., Morris P.F., Munro C.A., O'Neill K., Ospina-Giraldo M.,
RA Pinzon A., Pritchard L., Ramsahoye B., Ren Q., Restrepo S., Roy S.,
RA Sadanandom A., Savidor A., Schornack S., Schwartz D.C., Schumann U.D.,
RA Schwessinger B., Seyer L., Sharpe T., Silvar C., Song J., Studholme D.J.,
RA Sykes S., Thines M., van de Vondervoort P.J., Phuntumart V., Wawra S.,
RA Weide R., Win J., Young C., Zhou S., Fry W., Meyers B.C., van West P.,
RA Ristaino J., Govers F., Birch P.R., Whisson S.C., Judelson H.S.,
RA Nusbaum C.;
RT "Genome sequence and analysis of the Irish potato famine pathogen
RT Phytophthora infestans.";
RL Nature 461:393-398(2009).
CC -!- FUNCTION: Pyrophosphatase that hydrolyzes non-canonical purine
CC nucleotides such as inosine triphosphate (ITP), deoxyinosine
CC triphosphate (dITP) or xanthosine 5'-triphosphate (XTP) to their
CC respective monophosphate derivatives. The enzyme does not distinguish
CC between the deoxy- and ribose forms. Probably excludes non-canonical
CC purines from RNA and DNA precursor pools, thus preventing their
CC incorporation into RNA and DNA and avoiding chromosomal lesions.
CC {ECO:0000255|HAMAP-Rule:MF_03148}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ribonucleoside 5'-triphosphate + H2O = a ribonucleoside 5'-
CC phosphate + diphosphate + H(+); Xref=Rhea:RHEA:23996,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:58043, ChEBI:CHEBI:61557; EC=3.6.1.9;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:23997;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + H2O = a 2'-
CC deoxyribonucleoside 5'-phosphate + diphosphate + H(+);
CC Xref=Rhea:RHEA:44644, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:61560, ChEBI:CHEBI:65317; EC=3.6.1.9;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:44645;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + ITP = diphosphate + H(+) + IMP; Xref=Rhea:RHEA:29399,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:58053, ChEBI:CHEBI:61402; EC=3.6.1.9;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:29400;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=dITP + H2O = dIMP + diphosphate + H(+); Xref=Rhea:RHEA:28342,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:61194, ChEBI:CHEBI:61382; EC=3.6.1.9;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:28343;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + XTP = diphosphate + H(+) + XMP; Xref=Rhea:RHEA:28610,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:57464, ChEBI:CHEBI:61314; EC=3.6.1.9;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:28611;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03148};
CC Note=Binds 1 divalent metal cation per subunit; can use either Mg(2+)
CC or Mn(2+). {ECO:0000255|HAMAP-Rule:MF_03148};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_03148}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03148}.
CC -!- SIMILARITY: Belongs to the HAM1 NTPase family. {ECO:0000255|HAMAP-
CC Rule:MF_03148}.
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DR EMBL; DS028121; EEY66059.1; -; Genomic_DNA.
DR RefSeq; XP_002906658.1; XM_002906612.1.
DR AlphaFoldDB; D0MY11; -.
DR SMR; D0MY11; -.
DR STRING; 4787.PITG_03601T0; -.
DR EnsemblProtists; PITG_03601T0; PITG_03601T0; PITG_03601.
DR GeneID; 9467553; -.
DR KEGG; pif:PITG_03601; -.
DR VEuPathDB; FungiDB:PITG_03601; -.
DR eggNOG; KOG3222; Eukaryota.
DR HOGENOM; CLU_082080_1_1_1; -.
DR InParanoid; D0MY11; -.
DR OMA; DCFADDT; -.
DR OrthoDB; 1298391at2759; -.
DR Proteomes; UP000006643; Partially assembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0035870; F:dITP diphosphatase activity; IEA:RHEA.
DR GO; GO:0036218; F:dTTP diphosphatase activity; IEA:UniProtKB-EC.
DR GO; GO:0036220; F:ITP diphosphatase activity; IEA:RHEA.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0035529; F:NADH pyrophosphatase activity; IEA:UniProtKB-EC.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR GO; GO:0036222; F:XTP diphosphatase activity; IEA:RHEA.
DR GO; GO:0009204; P:deoxyribonucleoside triphosphate catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009117; P:nucleotide metabolic process; IEA:UniProtKB-KW.
DR CDD; cd00515; HAM1; 1.
DR Gene3D; 3.90.950.10; -; 1.
DR HAMAP; MF_03148; HAM1_NTPase; 1.
DR InterPro; IPR002637; Ham1p-like.
DR InterPro; IPR027502; ITPase.
DR InterPro; IPR029001; ITPase-like_fam.
DR PANTHER; PTHR11067; PTHR11067; 1.
DR Pfam; PF01725; Ham1p_like; 1.
DR SUPFAM; SSF52972; SSF52972; 1.
DR TIGRFAMs; TIGR00042; TIGR00042; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Hydrolase; Magnesium; Manganese; Metal-binding;
KW Nucleotide metabolism; Nucleotide-binding; Reference proteome.
FT CHAIN 1..191
FT /note="Inosine triphosphate pyrophosphatase"
FT /id="PRO_0000413125"
FT BINDING 12..17
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 42
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 54
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 70..71
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 87
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 145..148
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 168
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT BINDING 173..174
FT /ligand="ITP"
FT /ligand_id="ChEBI:CHEBI:61402"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
SQ SEQUENCE 191 AA; 20923 MW; 0F81424FA4688E6C CRC64;
MSSAKPVLTF VTGNANKLKE VVAILGADFP FELRNQAVDL PELQGEPADI AKEKCRLAAK
QVQGAVLVED TSLCFNALKG LPGPYIKWFL EKTGHDGLNN MLAAYEDKSA YAQCIFAYAP
AGAEPQVFVG QTHGKIVPAR GPTTFGWDPV FQPDGFEQTY AEMEKVTKNQ ISHRYKALEA
LKTHLVKPVD K
