(data stored in SCRATCH zone)

SWISSPROT: Q4ZZ80_PSEU2

ID   Q4ZZ80_PSEU2            Unreviewed;       197 AA.
AC   Q4ZZ80;
DT   07-JUN-2005, integrated into UniProtKB/TrEMBL.
DT   07-JUN-2005, sequence version 1.
DT   08-MAY-2019, entry version 91.
DE   RecName: Full=dITP/XTP pyrophosphatase {ECO:0000256|HAMAP-Rule:MF_01405};
DE            EC=3.6.1.66 {ECO:0000256|HAMAP-Rule:MF_01405};
DE   AltName: Full=Non-canonical purine NTP pyrophosphatase {ECO:0000256|HAMAP-Rule:MF_01405};
DE   AltName: Full=Non-standard purine NTP pyrophosphatase {ECO:0000256|HAMAP-Rule:MF_01405};
DE   AltName: Full=Nucleoside-triphosphate diphosphatase {ECO:0000256|HAMAP-Rule:MF_01405};
DE   AltName: Full=Nucleoside-triphosphate pyrophosphatase {ECO:0000256|HAMAP-Rule:MF_01405};
DE            Short=NTPase {ECO:0000256|HAMAP-Rule:MF_01405};
GN   OrderedLocusNames=Psyr_0472 {ECO:0000313|EMBL:AAY35542.1};
OS   Pseudomonas syringae pv. syringae (strain B728a).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas; Pseudomonas syringae.
OX   NCBI_TaxID=205918 {ECO:0000313|EMBL:AAY35542.1, ECO:0000313|Proteomes:UP000000426};
RN   [1] {ECO:0000313|EMBL:AAY35542.1, ECO:0000313|Proteomes:UP000000426}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B728a {ECO:0000313|EMBL:AAY35542.1,
RC   ECO:0000313|Proteomes:UP000000426};
RX   PubMed=16043691; DOI=10.1073/pnas.0504930102;
RA   Feil H., Feil W.S., Chain P., Larimer F., Dibartolo G., Copeland A.,
RA   Lykidis A., Trong S., Nolan M., Goltsman E., Thiel J., Malfatti S.,
RA   Loper J.E., Lapidus A., Detter J.C., Land M., Richardson P.M.,
RA   Kyrpides N.C., Ivanova N., Lindow S.E.;
RT   "Comparison of the complete genome sequences of Pseudomonas syringae
RT   pv. syringae B728a and pv. tomato DC3000.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:11064-11069(2005).
CC   -!- FUNCTION: Pyrophosphatase that catalyzes the hydrolysis of
CC       nucleoside triphosphates to their monophosphate derivatives, with
CC       a high preference for the non-canonical purine nucleotides XTP
CC       (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and
CC       ITP. Seems to function as a house-cleaning enzyme that removes
CC       non-canonical purine nucleotides from the nucleotide pool, thus
CC       preventing their incorporation into DNA/RNA and avoiding
CC       chromosomal lesions. {ECO:0000256|HAMAP-Rule:MF_01405,
CC       ECO:0000256|SAAS:SAAS00805977}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + ITP = diphosphate + H(+) + IMP;
CC         Xref=Rhea:RHEA:29399, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:58053, ChEBI:CHEBI:61402;
CC         EC=3.6.1.66; Evidence={ECO:0000256|HAMAP-Rule:MF_01405,
CC         ECO:0000256|SAAS:SAAS01118622};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + XTP = diphosphate + H(+) + XMP;
CC         Xref=Rhea:RHEA:28610, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:57464, ChEBI:CHEBI:61314;
CC         EC=3.6.1.66; Evidence={ECO:0000256|HAMAP-Rule:MF_01405,
CC         ECO:0000256|SAAS:SAAS01118649};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=dITP + H2O = dIMP + diphosphate + H(+);
CC         Xref=Rhea:RHEA:28342, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:61194, ChEBI:CHEBI:61382;
CC         EC=3.6.1.66; Evidence={ECO:0000256|HAMAP-Rule:MF_01405,
CC         ECO:0000256|SAAS:SAAS01118637};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_01405};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-
CC       Rule:MF_01405};
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01405,
CC       ECO:0000256|SAAS:SAAS00730484}.
CC   -!- SIMILARITY: Belongs to the HAM1 NTPase family. {ECO:0000256|HAMAP-
CC       Rule:MF_01405, ECO:0000256|RuleBase:RU003781,
CC       ECO:0000256|SAAS:SAAS00730348}.
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DR   EMBL; CP000075; AAY35542.1; -; Genomic_DNA.
DR   RefSeq; WP_011266424.1; NC_007005.1.
DR   RefSeq; YP_233580.1; NC_007005.1.
DR   STRING; 205918.Psyr_0472; -.
DR   EnsemblBacteria; AAY35542; AAY35542; Psyr_0472.
DR   GeneID; 3365948; -.
DR   KEGG; psb:Psyr_0472; -.
DR   PATRIC; fig|205918.7.peg.491; -.
DR   eggNOG; ENOG4108V82; Bacteria.
DR   eggNOG; COG0127; LUCA.
DR   HOGENOM; HOG000293319; -.
DR   KO; K02428; -.
DR   OMA; YDPIFQP; -.
DR   BioCyc; PSYR205918:G1G4J-473-MONOMER; -.
DR   Proteomes; UP000000426; Chromosome.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0017111; F:nucleoside-triphosphatase activity; IEA:InterPro.
DR   GO; GO:0047429; F:nucleoside-triphosphate diphosphatase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR   GO; GO:0009117; P:nucleotide metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0009146; P:purine nucleoside triphosphate catabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00515; HAM1; 1.
DR   Gene3D; 3.90.950.10; -; 1.
DR   HAMAP; MF_01405; Non_canon_purine_NTPase; 1.
DR   InterPro; IPR020922; dITP/XTP_pyrophosphatase.
DR   InterPro; IPR002637; Ham1p-like.
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;
DR   PRODOM; Q4ZZ80.
DR   SWISS-2DPAGE; Q4ZZ80.
KW   Complete proteome {ECO:0000313|Proteomes:UP000000426};
KW   Hydrolase {ECO:0000256|HAMAP-Rule:MF_01405,
KW   ECO:0000256|RuleBase:RU003781, ECO:0000256|SAAS:SAAS00730407};
KW   Magnesium {ECO:0000256|HAMAP-Rule:MF_01405,
KW   ECO:0000256|SAAS:SAAS00730390};
KW   Metal-binding {ECO:0000256|HAMAP-Rule:MF_01405,
KW   ECO:0000256|SAAS:SAAS00730432};
KW   Nucleotide metabolism {ECO:0000256|HAMAP-Rule:MF_01405,
KW   ECO:0000256|SAAS:SAAS00730340};
KW   Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01405,
KW   ECO:0000256|SAAS:SAAS00730332}.
FT   REGION       10     15       Substrate binding. {ECO:0000256|HAMAP-
FT                                Rule:MF_01405}.
FT   REGION      154    157       Substrate binding. {ECO:0000256|HAMAP-
FT                                Rule:MF_01405}.
FT   REGION      182    183       Substrate binding. {ECO:0000256|HAMAP-
FT                                Rule:MF_01405}.
FT   ACT_SITE     70     70       Proton acceptor. {ECO:0000256|HAMAP-Rule:
FT                                MF_01405}.
FT   METAL        41     41       Magnesium. {ECO:0000256|HAMAP-Rule:
FT                                MF_01405}.
FT   METAL        70     70       Magnesium. {ECO:0000256|HAMAP-Rule:
FT                                MF_01405}.
FT   BINDING      71     71       Substrate; via amide nitrogen.
FT                                {ECO:0000256|HAMAP-Rule:MF_01405}.
FT   BINDING     177    177       Substrate. {ECO:0000256|HAMAP-Rule:
FT                                MF_01405}.
SQ   SEQUENCE   197 AA;  21165 MW;  66FCA62653A316A3 CRC64;
     MNLTQLVLAS HNGGKLKELQ AMLGDSVTLR SVSEFSLVEP EETGLSFVEN AILKARNAAR
     LSGLPALADD SGLAVDFLGG APGIYSARYA DGQGDAANNA KLLEALKDVP DEQRGAQFVC
     VLALVRHADD PLPILCEGLW HGRILHAASG EHGFGYDPLF WVPERNCSSA ELGPTEKNQL
     SHRARAMVLL RQRLGLQ
//

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