TABLE 3.

Plaque sizes of transposon insertion mutants

Transposon insertion in mutantGene namePlaque size (% of WT size)a
lmo0964yjbH51.6 ± 5.3***
lmo1268clpX61.3 ± 2.7***
lmo1401ymdB35.1 ± 4.5*
lmo1575ytqI64.7 ± 5.3**
lmo1821prpC72.4 ± 3.2***
lmo2219prsA216.2 ± 1.3***
  • a Mean plaque sizes of murine L2 fibroblasts infected with transposon insertion mutants ± standard deviations, relative to that of the WT strain (the mean plaque size of the WT strain within each experiment was defined as 100%). Each mutant strain was analyzed in at least three experiments. To test the hypothesis that each mean mutant plaque size differs from 100%, a one-sample two-sided t test was performed using R software (http://www.r-project.org/). *, P < 0.005; **, P < 0.001; ***, P < 0.0005.