Rapid degradation of bacteriophage λ O protein by ClpP/ClpX protease influences the lysis-versus-lysogenization decision of the phage under certain growth conditions of the host cells

Rapid degradation of bacteriophage λ O protein by ClpP/ClpX protease influences the... The initiator of bacteriophage λ DNA replication, the O protein, is rapidly degraded in Escherichia coli by the ClpP/ClpX protease encoded by the host. Although the biochemical mechanism of this degradation has been investigated intensively, a physiological role for this process remained unknown since little effect of dysfunction of clpP and clpX genes on the lytic development of the phage was observed. Here we demonstrate that activities of clpP and clpX genes influence the lysis-versus-lysogenization decision of bacteriophage λ under certain growth conditions of the host cells. This decision is influenced specifically by ClpP/ClpX-mediated O degradation and resultant inhibition of early λ DNA replication because mutations in clpP and clpX genes have little effect on stability of other λ proteins involved in the regulation of the phage developmental switch. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Rapid degradation of bacteriophage λ O protein by ClpP/ClpX protease influences the lysis-versus-lysogenization decision of the phage under certain growth conditions of the host cells

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Publisher
Springer-Verlag
Copyright
Copyright © 2001 by Springer-Verlag/Wien
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050170073
Publisher site
See Article on Publisher Site

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