Fig 5.

Cis-complementation of the F-triggering activity of fusion-deficient chimeric protein by wt MV H. Cell-to-cell fusion of 293T cells transfected with the indicated receptor binding glycoproteins and MV F with Vero-His cells transfected with the MV receptor CD150 (A) or empty vector (B) was assessed by a β-Gal complementation assay as described in Materials and Methods. Vero-His cells were used as target cells. The values are means (with SD) for results from triplicate samples of a representative experiment repeated at least three times.