Penicillin-binding proteins in Streptococcus faecalis and S. faecium

Abstract
Penicillin-binding proteins (PBPs) of Streptococcus faecalis NCTC 775, S. faecium NCTC 7171 and an isolate of S. faecium (strain 37) highly resistant to β-lactam antibiotics were visualised by autoradiography. Five PBPs were detected in S. faecalis NCTC 775 and six in S. faecium NCTC 7171. Additional PBPs could not be found in the resistant isolate of S. faecium.