Figure 3
Refined 2.8 Å structures superimposed upon the 2.8 Å electron-density map are shown as a stereoscopic pair. The electron-density map was calculated as a 1.8 Å map. The red and light blue models are structures in S and R configurations, respectively. Both models are indistinguishable from each other with respect to their compatibility with the 2.8 Å electron-density map. The bar is 1 Å in length. |