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    Article

    Radiation sensitivity of messenger RNA

    Messenger RNA function is inactivated by irradiation with ultraviolet light. A unit length mRNA (in bases) is 2–3 times more sensitive than a unit length of DNA (in base pairs) with respect to the inactivation...

    Helmut Ponta, Mei-Li Pfennig-Yeh, Erwin F. Wagner… in Molecular and General Genetics MGG (1979)

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    Article

    Early T7 gene expression

    The mode of transcription of early T7 genes starting from one promotor region and generating a unique polycistronic RNA species suggests the appearance of equimolar amounts of the monocistronic species after R...

    Mei-li Pfennig-Yeh, Helmut Ponta… in Molecular and General Genetics MGG (1978)

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    Article

    A virus-specified mechanism for the prevention of multiple infection—T7- and T3-mutual and superinfection exclusion

    Co-and superinfection of cells with T3/T7 result in exclusion (mutual or superinfection exclusion). The exclusion mechanism is also directed against homologous (or identical) virus. Exclusion is established af...

    Monica Hirsch-Kauffmann, Mei-li Pfennig-Yeh… in Molecular and General Genetics MGG (1976)

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    Article

    E. coli membranes become permeable to ions following T7-virus-infection

    Infection of E. coli with the viruses T7 or T3 leads to a dramatic efflux of potassium ions. This ion efflux is caused by the virus particle since no concomitant protein synthesis is required. T7 mutants carrying...

    Helmut Ponta, Karl-Heinz Altendorf, Manfred Schweiger… in Molecular and General Genetics MGG (1976)