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ITPA_AEDAE
ID   ITPA_AEDAE              Reviewed;         188 AA.
AC   Q16YB3;
DT   19-OCT-2011, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   03-AUG-2022, entry version 93.
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=AAEL008605;
OS   Aedes aegypti (Yellowfever mosquito) (Culex aegypti).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Diptera; Nematocera; Culicoidea; Culicidae;
OC   Culicinae; Aedini; Aedes; Stegomyia.
OX   NCBI_TaxID=7159;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LVPib12;
RX   PubMed=17510324; DOI=10.1126/science.1138878;
RA   Nene V., Wortman J.R., Lawson D., Haas B.J., Kodira C.D., Tu Z.J.,
RA   Loftus B.J., Xi Z., Megy K., Grabherr M., Ren Q., Zdobnov E.M., Lobo N.F.,
RA   Campbell K.S., Brown S.E., Bonaldo M.F., Zhu J., Sinkins S.P.,
RA   Hogenkamp D.G., Amedeo P., Arensburger P., Atkinson P.W., Bidwell S.L.,
RA   Biedler J., Birney E., Bruggner R.V., Costas J., Coy M.R., Crabtree J.,
RA   Crawford M., DeBruyn B., DeCaprio D., Eiglmeier K., Eisenstadt E.,
RA   El-Dorry H., Gelbart W.M., Gomes S.L., Hammond M., Hannick L.I.,
RA   Hogan J.R., Holmes M.H., Jaffe D., Johnston S.J., Kennedy R.C., Koo H.,
RA   Kravitz S., Kriventseva E.V., Kulp D., Labutti K., Lee E., Li S.,
RA   Lovin D.D., Mao C., Mauceli E., Menck C.F., Miller J.R., Montgomery P.,
RA   Mori A., Nascimento A.L., Naveira H.F., Nusbaum C., O'Leary S.B., Orvis J.,
RA   Pertea M., Quesneville H., Reidenbach K.R., Rogers Y.-H.C., Roth C.W.,
RA   Schneider J.R., Schatz M., Shumway M., Stanke M., Stinson E.O.,
RA   Tubio J.M.C., Vanzee J.P., Verjovski-Almeida S., Werner D., White O.R.,
RA   Wyder S., Zeng Q., Zhao Q., Zhao Y., Hill C.A., Raikhel A.S., Soares M.B.,
RA   Knudson D.L., Lee N.H., Galagan J., Salzberg S.L., Paulsen I.T.,
RA   Dimopoulos G., Collins F.H., Bruce B., Fraser-Liggett C.M., Severson D.W.;
RT   "Genome sequence of Aedes aegypti, a major arbovirus vector.";
RL   Science 316:1718-1723(2007).
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; CH477519; EAT39613.1; -; Genomic_DNA.
DR   RefSeq; XP_001653334.1; XM_001653284.1.
DR   AlphaFoldDB; Q16YB3; -.
DR   SMR; Q16YB3; -.
DR   STRING; 7159.AAEL008605-PA; -.
DR   GeneID; 5570828; -.
DR   KEGG; aag:5570828; -.
DR   VEuPathDB; VectorBase:AAEL008605; -.
DR   eggNOG; KOG3222; Eukaryota.
DR   HOGENOM; CLU_082080_1_1_1; -.
DR   InParanoid; Q16YB3; -.
DR   OMA; DCFADDT; -.
DR   OrthoDB; 1298391at2759; -.
DR   PhylomeDB; Q16YB3; -.
DR   Proteomes; UP000008820; Chromosome 2.
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..188
FT                   /note="Inosine triphosphate pyrophosphatase"
FT                   /id="PRO_0000413106"
FT   BINDING         9..14
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         39
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         51
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         67..68
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         84
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         143..146
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         166
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         171..172
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
SQ   SEQUENCE   188 AA;  21472 MW;  CB20B4D9980462DF CRC64;
     MTRPISFVTG NAKKLEEVRA ILGPKFPREL LPVKLDLPEL QGEIDDICRK KCLEAARRVK
     GPVLVEDTCL CFNALKGLPG PYIKWFLEKL EPEGLHKLLD GWEDKSAEAV CTFAYAPGED
     AEVILFQGRT QGDIVYPRGC RDFGWDPIFQ PKGYDKSYAE LPKEKKNEIS HRFRALNKLR
     DYFVAENQ
 
 
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