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Phenotype variability in a lysogen carrying a heat inducible lambda prophage

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Summary

In this preliminary report two novel regulatory states of E. coli K12 recA −(λ int6 cI857) are described in which the lytic reproduction is suppressed in the absence of immunity. Occasionally, cells can shift from one state to another.

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References

  • Calef, E., Avitabile, A., del Giudice, L., Marchelli, C., Menna, T., Neubauer, Z., Soller, A.: The genetics of the anti-immune phenotype of defective lambda lysogens. The bacteriophage lambda, ed. A. D. Hershey, p. 609–620. Cold Spr. Harb. Laboratory 1971

  • Calef, E., Neubauer, Z.: Active and inactive states of the cI gene in some defective lysogens. Cold Spr. Harb. Symp. quant. Biol. 33, 765–767 (1968)

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  • Neubauer, Z.: Prophage deletions selected by heat induction of bacteria lysogenic for λ int6 cI857. Virology 42, 225–228 (1970)

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  • Oppenheim, A. D., Neubauer, Z., Calef, E.: The antirepressor: a new element in the regulation of protein synthesis. Nature (Lond.) 226, 31–32 (1970)

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Authors and Affiliations

  1. Department of Microbiology, Faculty of Sciences, Charles University, Prague

    Eva Koutecká, Josef Cirýn & Zdeněk Neubauer

Authors
  1. Eva Koutecká
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  2. Josef Cirýn
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  3. Zdeněk Neubauer
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Communicated by G. Bertani

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Koutecká, E., Cirýn, J. & Neubauer, Z. Phenotype variability in a lysogen carrying a heat inducible lambda prophage. Molec. Gen. Genet. 125, 359–361 (1973). https://doi.org/10.1007/BF00276591

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  • DOI: https://doi.org/10.1007/BF00276591

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