Figure 3 - full size

Figure 3.
Electron density maps calculated with regions of the model omitted. Stereo images showing the electron density omit maps calculated excluding residues βVal-371–Leu-391 (A) and βSer-340–Pro-350, and βGlu-422–Pro-428 (B) along with the pertinent regions of the final model are shown. The 2F[o] - F[c] maps are contoured at 1 σ.