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Electron density maps for residue 501, related to Figure 3
Electron density maps for RBDN501Y/Fab269 with residue 501 refined as a tyrosine in (A) and as an asparagine in (B). 2Fo-Fc maps are contoured at 1.2 σ and colored in blue in both panels. The negative density (red) in (A) is contoured at −3 σ, and the positive density (green) in (B) at 3 σ.
