binding studies with [ 14c ] benzylpenicillin alone or after preexposure of membrane preparations to benzylpenicillin , mecillinam , or cefoxitin suggest that reasonably selective binding of a beta-lactam antibiotic to one or two of the major penicillin-binding proteins ( pbp 1 or pbp 4 ) of s. mutans gs-5 and fa-1 may be the initial step in the series of events that results in the inhibition of growth and in the inhibition of insoluble peptidoglycan assembly and of rna and protein synthesis .
C0035668
rna
C0597295
protein synthesis