Reviewed, UniProtKB/Swiss-Prot P57190 (IPYR_BUCAI)

Names and origin

Protein names

Recommended name:
    Inorganic pyrophosphatase
    EC=3.6.1.1
Alternative name(s):
    Pyrophosphate phospho-hydrolase
      Short name=PPase

Gene names

Name:	ppa
Ordered Locus Names:	BU088

Organism

Buchnera aphidicola subsp. Acyrthosiphon pisum (Acyrthosiphon pisum symbiotic bacterium) [Complete proteome] [HAMAP]

Taxonomic identifier

118099 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Buchnera

Protein attributes

Sequence length	182 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	Diphosphate + H(2)O = 2 phosphate.
Cofactor	Binds 4 magnesium ions per subunit. Other metal ions can support activity, but at a lower rate. Two magnesium ions are required for the activation of the enzyme and are present before substrate binds, two additional magnesium ions form complexes with substrate and product By similarity.
Subcellular location	CytoplasmBy similarity.
Sequence similarities	Belongs to the PPase family.

Ontologies

Keywords
Cellular component	Cytoplasm
Ligand	Magnesium Metal-binding
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Cellular component	cytoplasm Inferred from electronic annotation. Source: HAMAP
Molecular function	inorganic diphosphatase activity Inferred from electronic annotation. Source: HAMAP magnesium ion binding Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view
Molecule processing
	Chain	1 – 182	182	Inorganic pyrophosphatase
Sites
	Metal binding	66	1	Magnesium 1 By similarity
	Metal binding	71	1	Magnesium 1 By similarity
	Metal binding	71	1	Magnesium 2 By similarity
	Metal binding	103	1	Magnesium 1 By similarity

Sequences

	Sequence		Length	Mass (Da)
	P57190-1 [UniParc]. Last modified December 1, 2000. Version 1. Checksum: 2503EC5605F9C9B3	FASTA	182	20,763
	10 20 30 40 50 60 MNLNKIVAGD DIPNDIYVII EISSNSSPIK YEVDKKSGML FVDRFIPTPM FYPCNYGYIN 70 80 90 100 110 120 HTLSLDGDPL DVLVPSHYPI KSSCVIHCKP IGILNMQDES GDDAKIIAVP KSKICQEYKN 130 140 150 160 170 180 INDISDISEL LKKQITHFFQ NYKTLEKEKW VEIIGWGNCQ DAKLEINDAY NRAKKNSIFL NK

References

[1]	"Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS." Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H. Nature 407:81-86(2000) [PubMed: 10993077] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Tokyo 1998.

Cross-references

Sequence databases
EMBLGenBankDDBJ	BA000003 Genomic DNA. Translation: BAB12808.1.
RefSeq	NP_239922.1.
3D structure databases
HSSP	HSSP built from PDB template 1FAJ based on UniProtKB P17288.
ModBase	Search...
Genome annotation databases
GeneID	1109492.
GenomeReviews	Gene locus BU088 in contig BA000003_GR.
KEGG	buc:BU088.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	P57190.
Enzyme and pathway databases
BioCyc	BSP107806:BU088-MON.
Family and domain databases
HAMAP	MF_00209. [Tree]
InterPro	IPR008162. Pyrophosphatase. [Graphical view]
Gene3D	G3DSA:3.90.80.10. Pyrophosphatase. 1 hit.
PANTHER	PTHR10286. Pyrophosphatase. 1 hit.
Pfam	PF00719. Pyrophosphatase. 1 hit. [Graphical view]
ProDom	PD002014. Inorg_pphsph. 1 hit. [Graphical view] [Entries sharing at least one domain]
PROSITE	PS00387. PPASE. 1 hit. [Graphical view]
BLOCKS	Search...
Other Resources
ProtoNet	Search...

Entry information

Entry name

IPYR_BUCAI

Accession

Primary (citable) accession number: P57190

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 1, 2000
Last sequence update:	December 1, 2000
Last modified:	July 22, 2008
This is version 44 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)