Figure 3.

MAb neutralization of pseudovirions pre- and postattachment. (a) Inhibition of HPV31 pseudovirion entry by HPV31 MAbs. HPV31 pseudovirions were preincubated with HPV31 MAbs and then added to cells. (b) Inhibition of HPV31 pseudovirion internalization by HPV31 MAbs. HPV31 pseudovirions were preattached to cells and then HPV31 MAbs were added. The four neutralizing MAbs investigated using the Bacterial display method are grouped at the right of the figure (Gray columns, neutralizing type-specific MAbs; black columns, cross neutralizing MAbs).