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Escape synthesis of β-galactosidase in strains of Escherichia coli lysogenic for λc I857 h80t 68 dlac


Heat induction of the prophage λc I857 h80t 68 dlac results in a 40-fold increase of β-galactosidase. This escape from repressor control is inhibited in an otherwise isogenic strain which overproduces lac repressor.

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Communicated by W. Maas

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Pfahl, M. Escape synthesis of β-galactosidase in strains of Escherichia coli lysogenic for λc I857 h80t 68 dlac . Molec. Gen. Genet. 105, 122–124 (1969).

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  • Escherichia Coli
  • Heat Induction
  • Isogenic Strain
  • Repressor Control
  • Escape Synthesis