title: Absence of mutation in the region (nt. 710-1010) of pbp4 gene in clinical isolates of Staphylococcus aureus with low-level teicoplanin resistance.
abstract: Resistance to teicoplanin in clinical isolates of Staphylococcus aureus has increased in frequency. Detection is difficult due to heterogeneous phenotypes of these strains. Two mutations in pbp4 have recently been identified in glycopeptide resistant laboratory strains. We investigated to determine if these mutations could be used to screen clinical isolates for teicoplanin resistance. Of 41 clinical isolates screened, none contained the mutations in pbp4 indicating these mutations cannot be used as a molecular diagnostic tool for glycopeptide resistance.
authors.affiliation: Department of Clinical Pathology, College of Medicine, the Catholic University of Korea, Kangnam St. Mary's Hospital, 505 Banpo-dong Seocho-ku, 137-040, Seoul, South Korea. yjpk@cmc.cuk.ac.kr
authors.forename: Y
authors.initials: Y
authors.lastname: Park
authors.forename: E J
authors.initials: EJ
authors.lastname: Oh
authors.forename: S O
authors.initials: SO
authors.lastname: Lee
authors.forename: B K
authors.initials: BK
authors.lastname: Kim
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001426:Bacterial Proteins; D002352:Carrier Proteins / Q000235:genetics*; D004252:DNA Mutational Analysis; D004269:DNA, Bacterial / Q000032:analysis; D004352:Drug Resistance, Microbial; D006602:Hexosyltransferases; D006801:Humans; D008826:Microbial Sensitivity Tests; D002267:Muramoylpentapeptide Carboxypeptidase / Q000235:genetics*; D046915:Penicillin-Binding Proteins; D010458:Peptidyl Transferases; D010641:Phenotype; D016133:Polymerase Chain Reaction; D013211:Staphylococcus aureus / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D017334:Teicoplanin / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D002352:Carrier Proteins; D004269:DNA, Bacterial; D046915:Penicillin-Binding Proteins; D017334:Teicoplanin; D010458:Peptidyl Transferases; D006602:Hexosyltransferases; D002267:Muramoylpentapeptide Carboxypeptidase