Functional domains of colicin M

  title={Functional domains of colicin M},
  author={Ralf Dreher and Volkmar Braun and Brigitte Wittmann-Liebold},
  journal={Archives of Microbiology},
The structure of colicin M of Escherichia coli was studied with regard to its organization into functional domains. A proteolytic fragment with an Mr of 24,000 was isolated which comprised the carboxyterminal portion of the protein. It adsorbed to the outer membrane receptor protein and inhibited killing of cells by colicin M and by phage T5 that uses the same receptor. The fragment killed cells when the outer membrane was rendered permeable to macromolecules for a short time by the osmotic… CONTINUE READING
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