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. 2015 Aug 31;10(8):e0136728. doi: 10.1371/journal.pone.0136728

Fig 4. Effect of rtL269I substitution on the resistance to entecavir (ETV).

Fig 4

(A) HBV 1.2mer DNA of all the mutants was transfected into Huh7 cells, which were treated with ETV for 3 days. The intracellular HBV DNA level was determined by Southern blot analysis. A representative result was displayed. (B) The relative replication levels of each HBV mutant (no drug vs ETV treatment) was calculated based on the results displayed in Figs 2C and 4A. (C) The relative replication ability of the HBV mutants treated with ETV were determined by Southern blot analysis, and quantified by Phosphorimager (*, P < 0.05; **, P < 0.01; ***, P < 0.001). The relative replication level of each HBV construct was displayed as the mean value of at least three independent experiments.