Category:Complex:exopolyphosphatase
About
Description (originally from EcoCyc[1][2]) exopolyphosphatase
Comments (originally from EcoCyc[1][2]) Exopolyphosphatase (PPX) degrades inorganic polyphosphates (poly(Pi)). It has a strong preference for long-chain polyphosphates; activity decreases with smaller size poly(Pi) of about 15 residues. PPX acts on the ends of the poly(Pi) chain, removing orthophosphate processively. [3][4][5]
References
- ↑ 1.0 1.1 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
- ↑ 2.0 2.1 EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
- ↑ Akiyama, M et al. (1993) An exopolyphosphatase of Escherichia coli. The enzyme and its ppx gene in a polyphosphate operon. J. Biol. Chem. 268 633-9 PubMed
- ↑ Kuroda, A et al. (1997) Guanosine tetra- and pentaphosphate promote accumulation of inorganic polyphosphate in Escherichia coli. J. Biol. Chem. 272 21240-3 PubMed
- ↑ Reizer, J et al. (1993) Exopolyphosphate phosphatase and guanosine pentaphosphate phosphatase belong to the sugar kinase/actin/hsp 70 superfamily. Trends Biochem. Sci. 18 247-8 PubMed
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