[en] Selective degradation of the teichoic acid and the peptidoglycan polymers of the walls of Staphylococcus aureus (Copenhagen) by several defined techniques shows that 4-O-β-(N-acetyl-D-glucosaminyl) substitution of the D-ribitol units of the teichoic acid moiety is essential to phage fixation and that, in order to be operative, these groups must possess a definite configuration which, in the native walls, is imparted by the binding of the teichoic acid to the supporting peptidoglycan.
