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ITPA2_TRYCC
ID   ITPA2_TRYCC             Reviewed;         196 AA.
AC   Q4DRX4;
DT   19-OCT-2011, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=Inosine triphosphate pyrophosphatase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE            Short=ITPase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE            Short=Inosine triphosphatase 2 {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 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE   AltName: Full=Non-standard purine NTP pyrophosphatase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE   AltName: Full=Nucleoside-triphosphate diphosphatase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE   AltName: Full=Nucleoside-triphosphate pyrophosphatase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
DE            Short=NTPase 2 {ECO:0000255|HAMAP-Rule:MF_03148};
GN   ORFNames=Tc00.1047053508307.184;
OS   Trypanosoma cruzi (strain CL Brener).
OC   Eukaryota; Discoba; Euglenozoa; Kinetoplastea; Metakinetoplastina;
OC   Trypanosomatida; Trypanosomatidae; Trypanosoma; Schizotrypanum.
OX   NCBI_TaxID=353153;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CL Brener;
RX   PubMed=16020725; DOI=10.1126/science.1112631;
RA   El-Sayed N.M.A., Myler P.J., Bartholomeu D.C., Nilsson D., Aggarwal G.,
RA   Tran A.-N., Ghedin E., Worthey E.A., Delcher A.L., Blandin G.,
RA   Westenberger S.J., Caler E., Cerqueira G.C., Branche C., Haas B.,
RA   Anupama A., Arner E., Aslund L., Attipoe P., Bontempi E., Bringaud F.,
RA   Burton P., Cadag E., Campbell D.A., Carrington M., Crabtree J., Darban H.,
RA   da Silveira J.F., de Jong P., Edwards K., Englund P.T., Fazelina G.,
RA   Feldblyum T., Ferella M., Frasch A.C., Gull K., Horn D., Hou L., Huang Y.,
RA   Kindlund E., Klingbeil M., Kluge S., Koo H., Lacerda D., Levin M.J.,
RA   Lorenzi H., Louie T., Machado C.R., McCulloch R., McKenna A., Mizuno Y.,
RA   Mottram J.C., Nelson S., Ochaya S., Osoegawa K., Pai G., Parsons M.,
RA   Pentony M., Pettersson U., Pop M., Ramirez J.L., Rinta J., Robertson L.,
RA   Salzberg S.L., Sanchez D.O., Seyler A., Sharma R., Shetty J., Simpson A.J.,
RA   Sisk E., Tammi M.T., Tarleton R., Teixeira S., Van Aken S., Vogt C.,
RA   Ward P.N., Wickstead B., Wortman J., White O., Fraser C.M., Stuart K.D.,
RA   Andersson B.;
RT   "The genome sequence of Trypanosoma cruzi, etiologic agent of Chagas
RT   disease.";
RL   Science 309:409-415(2005).
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; AAHK01000222; EAN95294.1; -; Genomic_DNA.
DR   RefSeq; XP_817145.1; XM_812052.1.
DR   AlphaFoldDB; Q4DRX4; -.
DR   SMR; Q4DRX4; -.
DR   STRING; 5693.XP_817145.1; -.
DR   PaxDb; Q4DRX4; -.
DR   EnsemblProtists; EAN95294; EAN95294; Tc00.1047053508307.184.
DR   GeneID; 3549132; -.
DR   KEGG; tcr:508307.184; -.
DR   eggNOG; KOG3222; Eukaryota.
DR   OMA; DCFADDT; -.
DR   OrthoDB; 1298391at2759; -.
DR   Proteomes; UP000002296; Unassembled 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..196
FT                   /note="Inosine triphosphate pyrophosphatase 2"
FT                   /id="PRO_0000413124"
FT   BINDING         20..25
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         48
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         61
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         77..78
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         94
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         153..156
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         177
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
FT   BINDING         182..183
FT                   /ligand="ITP"
FT                   /ligand_id="ChEBI:CHEBI:61402"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03148"
SQ   SEQUENCE   196 AA;  21549 MW;  9A5925DACF5CFB61 CRC64;
     MAEGSAVLRG SSNHKVTLVT GNDGKRREVQ ACLEGHVLVE NVKLDLPEIQ SDSVFEISRN
     KALTAYDIIK SPVLVEDTAL CFDALGGLPG PYVKWFFERI GPTGLIKLLE GFDTRRAYAT
     CVFTYCASPD VVLQFEGRCD GRIVEVPRGE GGFGWDSVFE PDEGCGQTYA EMQDEEKNRI
     SPRAKALVAL KAHFCL
 
 
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