IXTPA_DEIDV
ID IXTPA_DEIDV Reviewed; 208 AA.
AC C1CXX6;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 21-SEP-2011, sequence version 2.
DT 03-AUG-2022, entry version 64.
DE RecName: Full=dITP/XTP pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_01405};
DE EC=3.6.1.66 {ECO:0000255|HAMAP-Rule:MF_01405};
DE AltName: Full=Non-canonical purine NTP pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_01405};
DE AltName: Full=Non-standard purine NTP pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_01405};
DE AltName: Full=Nucleoside-triphosphate diphosphatase {ECO:0000255|HAMAP-Rule:MF_01405};
DE AltName: Full=Nucleoside-triphosphate pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_01405};
DE Short=NTPase {ECO:0000255|HAMAP-Rule:MF_01405};
GN OrderedLocusNames=Deide_19360;
OS Deinococcus deserti (strain DSM 17065 / CIP 109153 / LMG 22923 / VCD115).
OC Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae;
OC Deinococcus.
OX NCBI_TaxID=546414;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17065 / CIP 109153 / LMG 22923 / VCD115;
RX PubMed=19370165; DOI=10.1371/journal.pgen.1000434;
RA de Groot A., Dulermo R., Ortet P., Blanchard L., Guerin P., Fernandez B.,
RA Vacherie B., Dossat C., Jolivet E., Siguier P., Chandler M., Barakat M.,
RA Dedieu A., Barbe V., Heulin T., Sommer S., Achouak W., Armengaud J.;
RT "Alliance of proteomics and genomics to unravel the specificities of Sahara
RT bacterium Deinococcus deserti.";
RL PLoS Genet. 5:E1000434-E1000434(2009).
CC -!- FUNCTION: Pyrophosphatase that catalyzes the hydrolysis of nucleoside
CC triphosphates to their monophosphate derivatives, with a high
CC preference for the non-canonical purine nucleotides XTP (xanthosine
CC triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to
CC function as a house-cleaning enzyme that removes non-canonical purine
CC nucleotides from the nucleotide pool, thus preventing their
CC incorporation into DNA/RNA and avoiding chromosomal lesions.
CC {ECO:0000255|HAMAP-Rule:MF_01405}.
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=3.6.1.66;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01405};
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=3.6.1.66;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01405};
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=3.6.1.66;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01405};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01405};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01405};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01405}.
CC -!- SIMILARITY: Belongs to the HAM1 NTPase family. {ECO:0000255|HAMAP-
CC Rule:MF_01405}.
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DR EMBL; CP001114; ACO46932.2; -; Genomic_DNA.
DR RefSeq; WP_041227237.1; NC_012526.1.
DR AlphaFoldDB; C1CXX6; -.
DR SMR; C1CXX6; -.
DR STRING; 546414.Deide_19360; -.
DR PaxDb; C1CXX6; -.
DR EnsemblBacteria; ACO46932; ACO46932; Deide_19360.
DR KEGG; ddr:Deide_19360; -.
DR eggNOG; COG0127; Bacteria.
DR HOGENOM; CLU_082080_0_2_0; -.
DR OrthoDB; 1824064at2; -.
DR Proteomes; UP000002208; Chromosome.
DR GO; GO:0035870; F:dITP 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:0017111; F:nucleoside-triphosphatase activity; IEA:InterPro.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR GO; GO:0036222; F:XTP diphosphatase activity; IEA:UniProtKB-EC.
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;
KW Hydrolase; Magnesium; Metal-binding; Nucleotide metabolism;
KW Nucleotide-binding; Reference proteome.
FT CHAIN 1..208
FT /note="dITP/XTP pyrophosphatase"
FT /id="PRO_1000215201"
FT ACT_SITE 75
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 16..21
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 46
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 75
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 76
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 155..158
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 178
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT BINDING 183..184
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
SQ SEQUENCE 208 AA; 22287 MW; A1BF35C7DE43B87C CRC64;
MTEGVGLKGR QVVVATGNAG KVREIEQALA GLDWRLTGLG SVTLPEETGA TYEENAALKA
CAAAVACGLP ALADDSGLEV EALDGQPGVY SARFGNRPND RERNLYLLEK LRGETNRRAK
FVSVVILAYP DGHLETYRGE MTGQLLEGPR GENGFGYDPL FVPDGETRSL AEMTVEEKRA
ISHRGRALAA LQAAHKDGLP PRQVSVID
