Fig. 3.
(A) Surface representation of bovine RSV F trimer (PDB code 5TDG)27. 3 monomers are coloured in light blue, pale green and salmon, respectively. The antigenic site for B4 is in red and B13 in green. (B) ELISA data showing binding of Fabs to bRSV antigen against a negative control antigen. (C) SPR data fitted to a 1:1 steady-state affinity model. The vertical black lines indicate the Kdapp obtained from the fit, with the exception of B4* where this is shown by a dashed red line. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)