This article has been reviewed according to Science X's editorial process and policies. A RSV F DT-mutants were transfected into 293T cells in a 96-well plate format, harvested on day 3, and supernatants were used in ELISA based total protein (Motavizumab), and conformational (AM14, D25, MPE8) analysis. Source data from the graphed, representative experiment are provided as a Source Data file