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Specificity requirements of bacterio phage t 4 lysozyme ec 3.2.1.17 involvement of n acetamido groups


European Journal of Biochemistry 119(3): 589-594
Specificity requirements of bacterio phage t 4 lysozyme ec 3.2.1.17 involvement of n acetamido groups
Bacillus cereus peptidoglycan with N-unsubstituted glucosamine residues was insensitive to treatment with bacteriophage T4 lysozyme. After N-acetylation with acetic anhydride, T4 lysozyme cleared solutions of the peptidoglycan and reducing sugars were liberated. The digestion products were mainly of high MW since the peptidoglycan is peptide cross-linked to a great extent. N-propylation did not convert the partially N-unsubstituted peptidoglycan to a sensitive form. The acetamido groups seem to be required for binding and/or catalysis by T4 lysozyme.


Accession: 006459200



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