ID A0A1H7SLZ1_9BACL Unreviewed; 207 AA. AC A0A1H7SLZ1; DT 22-NOV-2017, integrated into UniProtKB/TrEMBL. DT 22-NOV-2017, sequence version 1. DT 28-FEB-2018, entry version 4. 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 ORFNames=SAMN05518856_116137 {ECO:0000313|EMBL:SEL72457.1}; OS Paenibacillus sp. OK003. OC Bacteria; Firmicutes; Bacilli; Bacillales; Paenibacillaceae; OC Paenibacillus. OX NCBI_TaxID=1884380 {ECO:0000313|EMBL:SEL72457.1, ECO:0000313|Proteomes:UP000198837}; RN [1] {ECO:0000313|EMBL:SEL72457.1, ECO:0000313|Proteomes:UP000198837} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=OK003 {ECO:0000313|EMBL:SEL72457.1, RC ECO:0000313|Proteomes:UP000198837}; RA de Groot N.N.; RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases. 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: ITP + H(2)O = IMP + diphosphate. CC {ECO:0000256|HAMAP-Rule:MF_01405, ECO:0000256|SAAS:SAAS00805978}. CC -!- CATALYTIC ACTIVITY: XTP + H(2)O = XMP + diphosphate. CC {ECO:0000256|HAMAP-Rule:MF_01405, ECO:0000256|SAAS:SAAS00805983}. CC -!- CATALYTIC ACTIVITY: dITP + H(2)O = dIMP + diphosphate. CC {ECO:0000256|HAMAP-Rule:MF_01405, ECO:0000256|SAAS:SAAS00805979}. 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. CC {ECO:0000256|RuleBase:RU003781, ECO:0000256|SAAS:SAAS00730348}. CC -!- CAUTION: Lacks conserved residue(s) required for the propagation CC of feature annotation. {ECO:0000256|HAMAP-Rule:MF_01405}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; FOBD01000016; SEL72457.1; -; Genomic_DNA. DR Proteomes; UP000198837; Unassembled WGS sequence. 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; KW Complete proteome {ECO:0000313|Proteomes:UP000198837}; KW Hydrolase {ECO:0000256|RuleBase:RU003781, KW ECO:0000256|SAAS:SAAS00730407, ECO:0000313|EMBL:SEL72457.1}; 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 12 17 Substrate binding. {ECO:0000256|HAMAP- FT Rule:MF_01405}. FT REGION 165 168 Substrate binding. {ECO:0000256|HAMAP- FT Rule:MF_01405}. FT REGION 193 194 Substrate binding. {ECO:0000256|HAMAP- FT Rule:MF_01405}. FT ACT_SITE 74 74 Proton acceptor. {ECO:0000256|HAMAP-Rule: FT MF_01405}. FT METAL 74 74 Magnesium. {ECO:0000256|HAMAP-Rule: FT MF_01405}. FT BINDING 75 75 Substrate; via amide nitrogen. FT {ECO:0000256|HAMAP-Rule:MF_01405}. FT BINDING 188 188 Substrate. {ECO:0000256|HAMAP-Rule: FT MF_01405}. SQ SEQUENCE 207 AA; 21962 MW; 3329B007451E1D5F CRC64; MSLDSPIIIV ATRNAGKVRE FAHAFAPLGK EVKSMFDYPE LPDVVEDGVT FAENAWKKAK AVGDALGLPV LADDSGLCVD LLDGDPGVYS ARYAGEGATD AKNNAKLLEA LESLKSGEDT EQPLLSPASF VCALVLYDPA TGDKYESEGT VEGWITAEAA GGGGFGYDPL FYVPEYEMTM AELTLEQKQA ISHRGHALRA LVSSLKG //