ID D3EKK8_GEOS4 Unreviewed; 210 AA.
AC D3EKK8;
DT 23-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 23-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 81.
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=GYMC10_1493 {ECO:0000313|EMBL:ACX63778.1};
OS Geobacillus sp. (strain Y412MC10).
OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae; Paenibacillus.
OX NCBI_TaxID=481743 {ECO:0000313|EMBL:ACX63778.1, ECO:0000313|Proteomes:UP000002381};
RN [1] {ECO:0000313|Proteomes:UP000002381}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Y412MC10 {ECO:0000313|Proteomes:UP000002381};
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Saunders E., Brettin T., Detter J.C.,
RA Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA Brumm P., Mead D.;
RT "Complete sequence of Geobacillus sp. Y412MC10.";
RL Submitted (OCT-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACX63778.1, ECO:0000313|Proteomes:UP000002381}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Y412MC10 {ECO:0000313|EMBL:ACX63778.1,
RC ECO:0000313|Proteomes:UP000002381};
RX PubMed=23408395; DOI=10.4056/sigs.2605792;
RA Mead D.A., Lucas S., Copeland A., Lapidus A., Cheng J.F., Bruce D.C.,
RA Goodwin L.A., Pitluck S., Chertkov O., Zhang X., Detter J.C., Han C.S.,
RA Tapia R., Land M., Hauser L.J., Chang Y.J., Kyrpides N.C., Ivanova N.N.,
RA Ovchinnikova G., Woyke T., Brumm C., Hochstein R., Schoenfeld T., Brumm P.;
RT "Complete Genome Sequence of Paenibacillus strain Y4.12MC10, a Novel
RT Paenibacillus lautus strain Isolated from Obsidian Hot Spring in
RT Yellowstone National Park.";
RL Stand. Genomic Sci. 6:381-400(2012).
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:0000256|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:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_01405};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01405};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01405};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01405}.
CC -!- SIMILARITY: Belongs to the HAM1 NTPase family.
CC {ECO:0000256|ARBA:ARBA00008023, ECO:0000256|HAMAP-Rule:MF_01405,
CC ECO:0000256|RuleBase:RU003781}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01405}.
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DR EMBL; CP001793; ACX63778.1; -; Genomic_DNA.
DR RefSeq; WP_015733983.1; NZ_VEAV01000003.1.
DR AlphaFoldDB; D3EKK8; -.
DR STRING; 481743.GYMC10_1493; -.
DR KEGG; gym:GYMC10_1493; -.
DR HOGENOM; CLU_082080_0_2_9; -.
DR Proteomes; UP000002381; Chromosome.
DR GO; GO:0035870; F:dITP diphosphatase activity; IEA:UniProtKB-EC.
DR GO; GO:0036220; F:ITP diphosphatase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR GO; GO:0017111; F:ribonucleoside triphosphate phosphatase activity; IEA:InterPro.
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; IPR029001; ITPase-like_fam.
DR InterPro; IPR002637; RdgB/HAM1.
DR NCBIfam; TIGR00042; RdgB/HAM1 family non-canonical purine NTP pyrophosphatase; 1.
DR PANTHER; PTHR11067:SF9; INOSINE TRIPHOSPHATE PYROPHOSPHATASE; 1.
DR PANTHER; PTHR11067; INOSINE TRIPHOSPHATE PYROPHOSPHATASE/HAM1 PROTEIN; 1.
DR Pfam; PF01725; Ham1p_like; 1.
DR SUPFAM; SSF52972; ITPase-like; 1.
PE 3: Inferred from homology;
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01405};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01405};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01405}; Nucleotide metabolism {ECO:0000256|HAMAP-Rule:MF_01405};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01405}.
FT ACT_SITE 75
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 13..18
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 75
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 76
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 166..169
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 189
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 194..195
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
SQ SEQUENCE 210 AA; 22573 MW; AC49A8508C4CE25B CRC64;
MKLTLGDTLI VATRNQGKVK EFAHAFAAFG TDVKSMYDYP DLPDVVEDGA TFAANAFKKA
KEVGDALGLP VLADDSGLCV DALNGAPGVY SARYAGEHGA DEDNNEKLLG ELERLRLGED
TEQPLLSPAR FVCVLVLYDP VSGEKLEAEG NVEGWITSDP AGAGGFGYDP LFYLPSHEKT
MAELSLEEKQ EISHRGKALR KLVADLQALN
//
