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The long and short of it - polyphosphate, PPK and bacterial survival.
Brown MR, Kornberg A. Brown MR, et al. Trends Biochem Sci. 2008 Jun;33(6):284-90. doi: 10.1016/j.tibs.2008.04.005. Epub 2008 May 16. Trends Biochem Sci. 2008. PMID: 18487048 Review.
The genomes of many bacterial species, including pathogens, encode a homologue of a major poly P synthetic enzyme, poly P kinase 1 (PPK1). ...Thus far, no PPK1 homologue has been identified in higher-order eukaryotes and, therefore, PPK1 exhibits potential as a
The genomes of many bacterial species, including pathogens, encode a homologue of a major poly P synthetic enzyme, poly P kina …
Inorganic polyphosphate in Bacillus cereus: motility, biofilm formation, and sporulation.
Shi X, Rao NN, Kornberg A. Shi X, et al. Proc Natl Acad Sci U S A. 2004 Dec 7;101(49):17061-5. doi: 10.1073/pnas.0407787101. Epub 2004 Nov 30. Proc Natl Acad Sci U S A. 2004. PMID: 15572452 Free PMC article.
In the spore-forming Bacillus cereus, we have identified three principal enzymes and genes involved in the metabolism of poly-P, namely, (i) poly-P kinase (PPK), which synthesizes poly-P reversibly from ATP, (ii) exopolyphosphatase (PPX), which hydrolyzes poly-P to P(i), and (iii …
In the spore-forming Bacillus cereus, we have identified three principal enzymes and genes involved in the metabolism of poly-P, namely, (i) …
Inorganic polyphosphate in the social life of Myxococcus xanthus: motility, development, and predation.
Zhang H, Rao NN, Shiba T, Kornberg A. Zhang H, et al. Proc Natl Acad Sci U S A. 2005 Sep 20;102(38):13416-20. doi: 10.1073/pnas.0506520102. Epub 2005 Sep 8. Proc Natl Acad Sci U S A. 2005. PMID: 16174737 Free PMC article.
Inorganic polyphosphate (poly P), a polymer of tens or hundreds of phosphate residues linked by high-energy, ATP-like bonds, is found in all organisms and performs a wide variety of functions. Myxococcus xanthus, a social bacterium that feeds on other bacteri …
Inorganic polyphosphate (poly P), a polymer of tens or hundreds of phosphate residues linked by high-energy, ATP-like bonds, is found …
Inorganic polyphosphate in Dictyostelium discoideum: influence on development, sporulation, and predation.
Zhang H, Gómez-García MR, Brown MR, Kornberg A. Zhang H, et al. Proc Natl Acad Sci U S A. 2005 Feb 22;102(8):2731-5. doi: 10.1073/pnas.0500023102. Epub 2005 Feb 8. Proc Natl Acad Sci U S A. 2005. PMID: 15701689 Free PMC article.
The synthesis of poly P, a polymer of tens or hundreds of phosphate residues linked by high energy, ATP-like bonds, is catalyzed in most bacteria by poly P kinase (PPK1). The eukaryote D. discoideum possesses a homolog of PPK1. We report here that mutants of D. disc …
The synthesis of poly P, a polymer of tens or hundreds of phosphate residues linked by high energy, ATP-like bonds, is catalyzed in m …
Inorganic polyphosphate in the origin and survival of species.
Brown MR, Kornberg A. Brown MR, et al. Proc Natl Acad Sci U S A. 2004 Nov 16;101(46):16085-7. doi: 10.1073/pnas.0406909101. Epub 2004 Nov 1. Proc Natl Acad Sci U S A. 2004. PMID: 15520374 Free PMC article. Review.
In prebiotic evolution it could have provided a flexible, polyanionic scaffold to assemble macromolecules. It has been conserved in every cell in nature. In prokaryotes, a major poly P synthetic enzyme is poly P kinase 1 (PPK1), which is found in 100 bacterial genom …
In prebiotic evolution it could have provided a flexible, polyanionic scaffold to assemble macromolecules. It has been conserved in e …
A polyphosphate kinase (PPK2) widely conserved in bacteria.
Zhang H, Ishige K, Kornberg A. Zhang H, et al. Proc Natl Acad Sci U S A. 2002 Dec 24;99(26):16678-83. doi: 10.1073/pnas.262655199. Epub 2002 Dec 16. Proc Natl Acad Sci U S A. 2002. PMID: 12486232 Free PMC article.
In a null mutant of P. aeruginosa lacking ppk1, we have discovered a previously uncharacterized PPK activity (designated PPK2) distinguished from PPK1 by the following: synthesis of poly P from GTP or ATP, a preference for Mn2+ over Mg2+, and a stimula …
In a null mutant of P. aeruginosa lacking ppk1, we have discovered a previously uncharacterized PPK activity (designated PPK2) …
Polyphosphate kinase (PPK2), a potent, polyphosphate-driven generator of GTP.
Ishige K, Zhang H, Kornberg A. Ishige K, et al. Proc Natl Acad Sci U S A. 2002 Dec 24;99(26):16684-8. doi: 10.1073/pnas.262655299. Epub 2002 Dec 13. Proc Natl Acad Sci U S A. 2002. PMID: 12482933 Free PMC article.
An enzyme that uses inorganic polyphosphate (poly P) as a donor to convert GDP to GTP has been purified 1,300-fold to homogeneity from lysates of Pseudomonas aeruginosa PAOM5. ...
An enzyme that uses inorganic polyphosphate (poly P) as a donor to convert GDP to GTP has been purified 1,300-fold to homogeneity fro …
Polyphosphate kinase 1, a conserved bacterial enzyme, in a eukaryote, Dictyostelium discoideum, with a role in cytokinesis.
Zhang H, Gómez-García MR, Shi X, Rao NN, Kornberg A. Zhang H, et al. Proc Natl Acad Sci U S A. 2007 Oct 16;104(42):16486-91. doi: 10.1073/pnas.0706847104. Epub 2007 Oct 10. Proc Natl Acad Sci U S A. 2007. PMID: 17940044 Free PMC article.
Dictyostelium discoideum, a social slime mold, is one of a few eukaryotes known to possess a PPK1 homolog (DdPPK1). Compared with PPK1 of Escherichia coli, DdPPK1 contains the conserved residues for ATP binding and autophosphorylation, but has an N-terminal e …
Dictyostelium discoideum, a social slime mold, is one of a few eukaryotes known to possess a PPK1 homolog (DdPPK1). Com …
A polyphosphate kinase 1 (ppk1) mutant of Pseudomonas aeruginosa exhibits multiple ultrastructural and functional defects.
Fraley CD, Rashid MH, Lee SS, Gottschalk R, Harrison J, Wood PJ, Brown MR, Kornberg A. Fraley CD, et al. Proc Natl Acad Sci U S A. 2007 Feb 27;104(9):3526-31. doi: 10.1073/pnas.0609733104. Epub 2007 Feb 22. Proc Natl Acad Sci U S A. 2007. PMID: 17360677 Free PMC article.
Pseudomonas aeruginosa, of medical, environmental, and industrial importance, depends on inorganic polyphosphate (poly P) for a wide range of functions, especially survival. ...We describe here multiple defects in the ppk1 mutant PAOM5, including a striking compacti …
Pseudomonas aeruginosa, of medical, environmental, and industrial importance, depends on inorganic polyphosphate (poly P) for a wide …
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