The analysis shows that alanine, glutamic acid, diaminopimelic acid and muramic acid are characteristic constituents of a particular layer of the coli cell wall, i.e. the cell wall of a gram-negative organism, and separated therefrom by the phage enzyme in the form of connected complexes which, in addition, contain glucosamine and some glycine and lysine. Park and Stromingers thesis is strongly supported and complemented thereby, and the concept of the common root of lysis by phage and lysis by penicillin becomes entirely appropriate.
Trans. of Zeitschrift fuer Naturforschung (West Germany) v12b p421-427 1957.