Q6G1E6 (NTPA_BARQU) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Non-canonical purine NTP pyrophosphatase
EC=3.6.1.19

Alternative name(s):
Non-standard purine NTP pyrophosphatase
Nucleoside-triphosphate diphosphatase
Nucleoside-triphosphate pyrophosphatase
Short name=NTPase

Gene names

Ordered Locus Names:

BQ00480

Organism

Bartonella quintana (strain Toulouse) (Rochalimaea quintana) [Complete proteome] [HAMAP]

Taxonomic identifier

283165 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Bartonellaceae › Bartonella

Protein attributes

Sequence length	215 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Pyrophosphatase that hydrolyzes non-canonical purine nucleotides such as XTP and ITP/dITP to their respective monophosphate derivatives. Might exclude non-canonical purines from DNA precursor pool, thus preventing their incorporation into DNA and avoiding chromosomal lesions By similarity. HAMAP MF_01405
Catalytic activity	A nucleoside triphosphate + H2O = a nucleotide + diphosphate. HAMAP MF_01405
Cofactor	Binds 1 divalent metal cation ion per subunit; can use either magnesium or manganese By similarity.
Subunit structure	Homodimer By similarity. HAMAP MF_01405
Sequence similarities	Belongs to the HAM1 NTPase family.

Ontologies

Keywords
Biological process	Nucleotide metabolism
Ligand	Magnesium Manganese Metal-binding Nucleotide-binding
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	nucleotide metabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW nucleoside-triphosphatase activity Inferred from electronic annotation. Source: InterPro nucleoside-triphosphate diphosphatase activity Inferred from electronic annotation. Source: EC nucleotide binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 215	215	Non-canonical purine NTP pyrophosphatase HAMAP MF_01405		PRO_0000178132
Regions
	Region	13 – 18	6	Substrate binding By similarity
	Region	74 – 75	2	Substrate binding By similarity
Sites
	Metal binding	74	1	Magnesium or manganese By similarity
	Binding site	166	1	Substrate By similarity
	Binding site	186	1	Substrate By similarity
	Binding site	200	1	Substrate By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q6G1E6 [UniParc]. Last modified July 19, 2004. Version 1. Checksum: 982871F8EDDF3570	FASTA	215	23,668
	10 20 30 40 50 60 MRSIASKKLV IATHNTGKLH EITTLVAPFG LEIQSAKELD LPEPKETGVT FEENAYIKAF 70 80 90 100 110 120 AAAKNTGLPA LSDDSGLEVD ALGGAPGVYT ADWALQSDGT RNFSKAMQKI EDELQKIGAH 130 140 150 160 170 180 EKSQRKARFI SVICIAWSDA YADYFRGSVE GTFIWPPRGD KGFGFDPIFL PDGYENTFGE 190 200 210 MSTEQKHGWK LNDKTPLSHR ARAFKLLAEN LLTLS

References

[1]

"The louse-borne human pathogen Bartonella quintana is a genomic derivative of the zoonotic agent Bartonella henselae." Alsmark U.C.M., Frank A.C., Karlberg E.O., Legault B.-A., Ardell D.H., Canbaeck B., Eriksson A.-S., Naeslund A.K., Handley S.A., Huvet M., La Scola B., Holmberg M., Andersson S.G.E. Proc. Natl. Acad. Sci. U.S.A. 101:9716-9721(2004) [PubMed: 15210978] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Toulouse.

Cross-references

Sequence databases
EMBL GenBank DDBJ	BX897700 Genomic DNA. Translation: CAF25555.1.
RefSeq	YP_031774.1. NC_005955.1.
3D structure databases
ProteinModelPortal	Q6G1E6.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	2866883.
GenomeReviews	Gene locus BQ00480 in contig BX897700_GR.
KEGG	bqu:BQ00480.
NMPDR	fig|283165.1.peg.44.
PATRIC	31951223. VBIBarQui58630_0055.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG697237.
OMA	GVYTADW.
PhylomeDB	Q6G1E6.
ProtClustDB	PRK00120.
Enzyme and pathway databases
BioCyc	BQUI283165:BQ00480-MONOMER.
Family and domain databases
HAMAP	MF_01405. Non_canon_purine_NTPase. [Tree]
InterPro	IPR002637. Ham1p-like. IPR020922. Nucleoside-triphosphatase. [Graphical view]
KO	K02428.
PANTHER	PTHR11067. Ham1p_like. 1 hit.
Pfam	PF01725. Ham1p_like. 1 hit. [Graphical view]
TIGRFAMs	TIGR00042. TIGR00042. 1 hit.
ProtoNet	Search...

Entry information

Entry name

NTPA_BARQU

Accession

Primary (citable) accession number: Q6G1E6

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 26, 2005
Last sequence update:	July 19, 2004
Last modified:	January 25, 2012
This is version 42 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program