Figure 2.

Seventy-two hours postinfection, Tag is highly expressed in wtSV40-infected HM and Ast. The levels of Tag in HM and Ast infected by wtSV40 of both 776 and Baylor strains are higher than in 1ESV40-infected cells. (A) qRT-PCR of Tag in cells 72 hours postinfection with the different viruses. Asterisks indicate significant differences between the amount of Tag mRNA expressed by different cells, as indicated. (B) Western blots showing amounts of Tag protein produced 72 hours postinfection with wtSV40 or 1ESV40 in both HM and Ast.