physiological function |
mutants lacking enzymic activity show no significant changes in growth rate, colony morphology and biofilm formation. The mutants exhibit increased susceptibility to bacitracin. When the enzyme is expressed in a wild-type background, the minimum inhibitory concentration of bacitracin increases to 256 mg/L. The minimum inhibitory concentrations of cefoxitin, teicoplanin, vancomycin, gentamicin, enrofloxacin and D-cycloserine are unaltered in the mutant relative to the wild-type, as are susceptibilities to other stress agents such as glycine, lysozyme, NaCl, SDS, low and high pH, oxidative stress and ethanol |
Enterococcus faecalis |