Figure 4
The electron-density map calculated from the experimental phases after density modification. (a) The blue mesh is the electron-density map contoured at 1.5σ. The red mesh is the anomalous difference Fourier map calculated from the experimental phases and the anomalous differences of the peak data set contoured at 5σ. The red ribbon shows the Cα trace of an asymmetric unit. (b) Magnified view of the electron-density map with the corresponding structure of the refined LTC4S model. |