Table 5.

Quantitative analysis of mecA transcripts in SH621 and its derivative strains with and without methicillin induction

StrainsMIC of methicillin (mg/liter)Class ofmec complexAmt of mecA mRNA (amol)a
NoninducedInducedb
SH621 2A 1.48 2.66
SH621-31 32 C1b 17.163.9
SH621-810 512 A 1.79 39.8
  • a Average of two experiments.

  • b Induced with methicillin (8 mg/liter) for 30 min at 37°C.