FIG 5.
Antibodies against MERS-CoV fail to neutralize MERS-Uganda chimera. (A) Structure of the MERS-CoV spike trimer with therapeutic antibody LCA60 bound adjacent to the receptor-binding domain and the antibody G4 bound to the S2 portion. Consensus amino acids are outlined for the S1 (gray) and S2 (black) domains, with PDF-2180 differences noted in magenta. (B and C) Plaque neutralization curves for LCA60 (B) and G4 (C) with (solid) and without (dotted) trypsin treatment for MERS-CoV (black) and MERS-Uganda chimera (magenta) (n = 3 per concentration).