A GENE CONFERRING RESISTANCE TO VANCOMYCIN BUT NOT TEICOPLANIN IN ISOLATES OF ENTEROCOCCUS-FAECALIS AND ENTEROCOCCUS-FAECIUM DEMONSTRATES HOMOLOGY WITH VANB, VANA, AND VANC GENES OF ENTEROCOCCI

GOLD H., ÜNAL S., CERCENADO E., THAUVINELIOPOULOS C., ELIOPOULOS G., WENNERSTEN C., ...Daha Fazla

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, cilt.37, sa.8, ss.1604-1609, 1993 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 8
  • Basım Tarihi: 1993
  • Doi Numarası: 10.1128/aac.37.8.1604
  • Dergi Adı: ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1604-1609
  • Hacettepe Üniversitesi Adresli: Evet

Özet

We report the sequence of a 630-bp fragment of a gene associated with resistance to high levels of vancomycin in a clinical isolate of Enterococcus faecalis which retained susceptibility to teicoplanin. This gene was similar to the recently sequenced vanB and partially homologous with vanA, but it showed less-marked similarity to vanC. A DNA probe, derived from this polymerase chain reaction-amplified gene fragment, hybridized specifically with genomic DNA from Enterococcus faecium and E. faecalis isolates which were vancomycin resistant (MICs ranged from 8 to 512 mug/ml) but susceptible to teicoplanin. Curing of vancomycin resistance was associated with loss of DNA hybridization with the gene probe. Transfer of DNA which hybridized with the probe accompanied transfer of vancomycin resistance to a susceptible recipient strain. Neither curing nor transfer of vancomycin resistance was consistently related to loss or acquisition, respectively, of plasmid DNA.