Fig. 2. Characterization of virus assembly and release of domain III mutants.
(a) Huh7 cells were electroporated with the indicated virus RNAs and virus release into the culture supernatant was measured by a focus-forming assay. (b) Intracellular virus titres were measured by a focus-forming assay following cell disruption by repetitive freeze–thaw at 72 h p.t. (c, d) Extracellular (c) and intracellular (d) genomic RNA levels were measured at 120 h p.t. by quantitative RT-PCR. Data from three independent experiments are shown; bars indicate SEM. GND represents a corresponding polymerase-defective construct.
