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Cloning and characterization of the immunity region of phage ϕ80

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Summary

The immunity region of phage ϕ80 has been localized. It codes for at least three proteins: a protein of 34 kDa which has the biological properties of the phage repressor, and two other proteins of 9 kDa and 18 kDa which are the first proteins on the rightward operon. These two proteins are negatively regulated by the 34 kDa protein at a divergent promoter site. By position analogy with phage λ, but not by its biological activity, the 9 kDa protein could be the cro roduct. The 18 kDa protein is able to block totally UV induction of phage ϕ80.

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Authors and Affiliations

  1. Laboratoire d'Enzymologie, CNRS, F-91190, Gif sur Yvette, France

    Geneviève Coste & Françoise Bernardi

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  1. Geneviève Coste
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  2. Françoise Bernardi
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Communicated by H. Böhme

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Coste, G., Bernardi, F. Cloning and characterization of the immunity region of phage ϕ80. Mol Gen Genet 206, 452–459 (1987). https://doi.org/10.1007/BF00428885

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  • DOI: https://doi.org/10.1007/BF00428885

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