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IXTPA_ANADF
ID   IXTPA_ANADF             Reviewed;         230 AA.
AC   A7HFW2;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
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=Anae109_3424;
OS   Anaeromyxobacter sp. (strain Fw109-5).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Myxococcales;
OC   Cystobacterineae; Anaeromyxobacteraceae; Anaeromyxobacter;
OC   unclassified Anaeromyxobacter.
OX   NCBI_TaxID=404589;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Fw109-5;
RX   PubMed=25614562; DOI=10.1128/genomea.01449-14;
RA   Hwang C., Copeland A., Lucas S., Lapidus A., Barry K., Glavina Del Rio T.,
RA   Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D.C.,
RA   Detter J.C., Han C.S., Schmutz J., Larimer F.W., Land M.L., Hauser L.J.,
RA   Kyrpides N., Lykidis A., Richardson P., Belieav A., Sanford R.A.,
RA   Loeffler F.E., Fields M.W.;
RT   "Complete genome sequence of Anaeromyxobacter sp. Fw109-5, an anaerobic,
RT   metal-reducing bacterium isolated from a contaminated subsurface
RT   environment.";
RL   Genome Announc. 3:0-0(2015).
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; CP000769; ABS27608.1; -; Genomic_DNA.
DR   AlphaFoldDB; A7HFW2; -.
DR   SMR; A7HFW2; -.
DR   STRING; 404589.Anae109_3424; -.
DR   EnsemblBacteria; ABS27608; ABS27608; Anae109_3424.
DR   KEGG; afw:Anae109_3424; -.
DR   eggNOG; COG0127; Bacteria.
DR   HOGENOM; CLU_082080_0_1_7; -.
DR   OMA; DCFADDT; -.
DR   Proteomes; UP000006382; 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..230
FT                   /note="dITP/XTP pyrophosphatase"
FT                   /id="PRO_1000068408"
FT   ACT_SITE        70
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         41
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         70
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         71
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         181..184
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         205
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
FT   BINDING         210..211
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01405"
SQ   SEQUENCE   230 AA;  24034 MW;  81C86C49BA0C9F23 CRC64;
     MDLLFASTNP GKLKELRRLV AGLPIRVVSP DELPRALPEV EEDGATFQAN AEKKASTYAR
     LAGMAALADD SGLAVDALGG APGVRSARWS DEEPGPAPAS PVCDLAEAAA AELGPVAGRG
     ARDERNNDKL LRSLAGLPDE RRGAQYEAVL AVARADGSLV ASVAGVCRGR IGHARRGTGG
     FGYDPLFVPD GQGGRTMAEL SAEEKDAISH RGDAFRRIRS LLERLAREGA
 
 
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