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IXTPA_CORJK
ID   IXTPA_CORJK             Reviewed;         217 AA.
AC   Q4JX01;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=jk0499;
OS   Corynebacterium jeikeium (strain K411).
OC   Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC   Corynebacterium.
OX   NCBI_TaxID=306537;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K411;
RX   PubMed=15968079; DOI=10.1128/jb.187.13.4671-4682.2005;
RA   Tauch A., Kaiser O., Hain T., Goesmann A., Weisshaar B., Albersmeier A.,
RA   Bekel T., Bischoff N., Brune I., Chakraborty T., Kalinowski J., Meyer F.,
RA   Rupp O., Schneiker S., Viehoever P., Puehler A.;
RT   "Complete genome sequence and analysis of the multiresistant nosocomial
RT   pathogen Corynebacterium jeikeium K411, a lipid-requiring bacterium of the
RT   human skin flora.";
RL   J. Bacteriol. 187:4671-4682(2005).
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; CR931997; CAI36656.1; -; Genomic_DNA.
DR   RefSeq; WP_011273172.1; NC_007164.1.
DR   AlphaFoldDB; Q4JX01; -.
DR   SMR; Q4JX01; -.
DR   STRING; 306537.jk0499; -.
DR   EnsemblBacteria; CAI36656; CAI36656; jk0499.
DR   KEGG; cjk:jk0499; -.
DR   PATRIC; fig|306537.10.peg.511; -.
DR   eggNOG; COG0127; Bacteria.
DR   HOGENOM; CLU_082080_0_1_11; -.
DR   OMA; DCFADDT; -.
DR   OrthoDB; 1824064at2; -.
DR   Proteomes; UP000000545; 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.
PE   3: Inferred from homology;
KW   Hydrolase; Magnesium; Metal-binding; Nucleotide metabolism;
KW   Nucleotide-binding; Reference proteome.
FT   CHAIN           1..217
FT                   /note="dITP/XTP pyrophosphatase"
FT                   /id="PRO_1000068419"
FT   ACT_SITE        72
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         7..12
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         72
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         73
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         163..166
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         195
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         200..201
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
SQ   SEQUENCE   217 AA;  23246 MW;  F292AAA3AF38E92E CRC64;
     MRVLVASRNK KKLAELNRML EAANVTGIEL VGLGDLPEYP ETPETGATFV DNARIKTNDG
     VRHTGLPTIA DDSGLAVDAL NGMPGVLSAR WSGGHGDDKA NNDLLLAQMG DVPDERRGAH
     FVSSCVLQLP AQVAAERGME TEYAVEGRWY GRVLRAEQGE GGFGYDPLFA PDELPEGQEE
     QLAGKSAGEL TAEQKDAVSH RGKALRQLVE ILAQLAD
 
 
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