Berger-Bächi B 1994 Methicillin-resistant staphylococci have an additional low-affinity penicillin-binding protein, PBP2a (PBP2'), encoded by the mecA gene. The typical heterogeneity seen in the expression of resistance to methicillin and in levels of resistance depends on the concerted action of chromosomally encoded genes, including fem and aux, that are also present in the genome of susceptible staphylococci. https://sonar.ch/global/documents/262732 eng info:eu-repo/semantics/altIdentifier/doi/10.1016/0966-842x(94)90617-3 info:eu-repo/semantics/altIdentifier/pmid/7850207 Trends in microbiology. - 1994 Amino Acid Sequence Bacterial Proteins Carrier Proteins Genes, Bacterial Hexosyltransferases Methicillin Resistance Molecular Sequence Data Muramoylpentapeptide Carboxypeptidase Penicillin-Binding Proteins Peptidoglycan Peptidyl Transferases Staphylococcus Expression of resistance to methicillin. http://purl.org/coar/resource_type/c_6501