ID G0A3U8_METMM Unreviewed; 195 AA.
AC G0A3U8;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 27-MAR-2024, entry version 61.
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=Metme_4372 {ECO:0000313|EMBL:AEG02720.1};
OS Methylomonas methanica (strain MC09).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Methylococcales;
OC Methylococcaceae; Methylomonas.
OX NCBI_TaxID=857087 {ECO:0000313|EMBL:AEG02720.1, ECO:0000313|Proteomes:UP000008888};
RN [1] {ECO:0000313|EMBL:AEG02720.1, ECO:0000313|Proteomes:UP000008888}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MC09 {ECO:0000313|EMBL:AEG02720.1,
RC ECO:0000313|Proteomes:UP000008888};
RX PubMed=22123758; DOI=10.1128/JB.06267-11;
RA Boden R., Cunliffe M., Scanlan J., Moussard H., Kits K.D., Klotz M.G.,
RA Jetten M.S., Vuilleumier S., Han J., Peters L., Mikhailova N., Teshima H.,
RA Tapia R., Kyrpides N., Ivanova N., Pagani I., Cheng J.F., Goodwin L.,
RA Han C., Hauser L., Land M.L., Lapidus A., Lucas S., Pitluck S., Woyke T.,
RA Stein L., Murrell J.C.;
RT "Complete Genome Sequence of the Aerobic Marine Methanotroph Methylomonas
RT methanica MC09.";
RL J. Bacteriol. 193:7001-7002(2011).
RN [2]
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=MC09;
RA Boden R., Cunliffe M., Scanlan J., Moussard H., Kits K.D., Klotz M.,
RA Jetten M., Vuilleumier S., Han J., Peters L., Mikhailova N., Teshima H.,
RA Tapia R., Kyrpides N., Ivanova N., Pagani I., Cheng J.-F., Goodwin L.,
RA Han C., Hauser L., Land M., Lapidus A., Lucas S., Pitluck S., Woyke T.,
RA Stein L.Y., Murrell C.;
RT "Complete genome sequence of the aerobic marine methanotroph Methylomonas
RT methanica MC09.";
RL Submitted (MAY-2011) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|Proteomes:UP000008888}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MC09 {ECO:0000313|Proteomes:UP000008888};
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Mikhailova N., Teshima H., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Pagani I., Stein L., Woyke T.;
RT "Complete sequence of Methylomonas methanica MC09.";
RL Submitted (MAY-2011) to the EMBL/GenBank/DDBJ databases.
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 ---------------------------------------------------------------------------
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; CP002738; AEG02720.1; -; Genomic_DNA.
DR RefSeq; WP_013820933.1; NC_015572.1.
DR AlphaFoldDB; G0A3U8; -.
DR STRING; 857087.Metme_4372; -.
DR KEGG; mmt:Metme_4372; -.
DR eggNOG; COG0127; Bacteria.
DR HOGENOM; CLU_082080_0_3_6; -.
DR OrthoDB; 9807456at2; -.
DR Proteomes; UP000008888; 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};
KW Nucleotide metabolism {ECO:0000256|ARBA:ARBA00023080, ECO:0000256|HAMAP-
KW Rule:MF_01405};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01405}; Reference proteome {ECO:0000313|Proteomes:UP000008888}.
FT ACT_SITE 67
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 8..13
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 38
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 67
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 68
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 152..155
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 175
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
FT BINDING 180..181
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01405"
SQ SEQUENCE 195 AA; 21081 MW; CDCCDE79747C4AD9 CRC64;
MSSIVLASGN PGKIREIQAL LQNDDILPQS QFNVVEADET GSTFIENAII KARNAARHCR
LPAIADDSGL AVDALQGAPG VISARYAGVG ASDQANLEKL LLEMRDIPTR QRTARFICVM
VYLRHANDPT PIIAQGVWEG RILEAAVGDN GFGYDPVFWV ESQQCASAQL VPALKNQLSH
RGQALRALSQ HLNGR
//
