Isolation of a specialized lambda transducing bacteriophage carrying the beta subunit gene for Escherichia coli ribonucleic acid polymerase.

@article{Kirschbaum1973IsolationOA,
  title={Isolation of a specialized lambda transducing bacteriophage carrying the beta subunit gene for Escherichia coli ribonucleic acid polymerase.},
  author={J B Kirschbaum and E. Bruce Konrad},
  journal={Journal of bacteriology},
  year={1973},
  volume={116 2},
  pages={517-26}
}
A heat-inducible lysis-defective lambda prophage has been integrated directly into the E. coli chromosome at a site (bfe) very closely linked to the ribonucleic acid polymerase mutation rif(d), a dominant rifampin resistance allele. This unusual lysogen has facilitated the isolation of specialized transducing phages conferring rifampin resistance to sensitive cells, and carrying at least the beta subunit gene of RNA polymerase in intact form. 
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