Fig. 5.

Effects of single, double, and triple mutations in the three gB sequences on the accumulation of endocytosed gB in infected cells. Experiments were performed as described for Fig. 2A except that recombinant viruses carrying the single, double, or triple mutations in the gB sequences were used. The relative amount of endocytosed gB in infected cells was calculated and presented as described for Fig. 2B.