FIG. 6.

Co-IP of NDV-AV HN and L94-mutated HNs with the homologous F protein. The experiment is performed and data are expressed as described in the legend to Fig. 4. The percentage of the total amount of each L94-mutated HN protein at the cell surface that is coimmunoprecipitated with anti-F MAb is expressed relative to that of the wt HN protein. The data are means of three independent determinations. The percent wt fusion data shown are the results from the content mixing assay shown in Fig. 5. ND, none detected.