Table 2.

DNA content associated with vesicles from E. coli O157:H7 isolates

StrainSerotypeAmt (ng) of DNA/30 μg of vesicle protein (avg ± SE)a
IntactLysedb
ATCC 43895O157:H71.29 ± 0.432.54 ± 0.18
8302O157:H73.77 ± 1.76.93 ± 1.1
ATCC 33694None0.347 ± 0.241.51 ± 0.16
  • a n = 3.

  • b Vesicles lysed with GES reagent.