Point Mutation in the Group B Streptococcal pbp2x Gene Conferring Decreased Susceptibility to β-Lactam Antibiotics

Point Mutation in the Group B Streptococcal pbp2x Gene Conferring Decreased Susceptibility to β-Lactam Antibiotics First Molecular Characterization of Group B Streptococci with Reduced Penicillin Susceptibility Genetic Heterogeneity in pbp Genes among Clinically Isolated Group B Streptococci with Reduced Penicillin Susceptibility An Important Site in PBP2x of Penicillin-Resistant Clinical Isolates of Streptococcus pneumoniae : Mutational Analysis of Thr338 Highly Variable Penicillin Resistance Determinants PBP 2x, PBP 2b, and PBP 1a in Isolates of Two Streptococcus pneumoniae Clonal Groups, Poland ^23F -16 and Poland ^6B -20 Penicillin-Binding Protein Gene Alterations in Streptococcus uberis Isolates Presenting Decreased Susceptibility to Penicillin Contribution of BlaA and BlaB β-Lactamases to Antibiotic Susceptibility of Yersinia enterocolitica Biovar 1B A mec A -Negative Strain of Methicillin-Resistant S taphylococcus aureus with High-Level β-Lactam Resistance Contains Mutations in Three Genes Diversity of Penicillin Binding Proteins among Clinical Streptococcus pneumoniae Strains from Portugal Promoter and Transcription Analysis of Penicillin-Binding Protein Genes in Streptococcus gordonii