Figure 1
Wall-eyed stereoviews of yeast phenylalanine tRNA. (a) A σA-weighted Fo − Fc electron-density map contoured at 1.0 r.m.s. at 2 Å resolution shown as a blue mesh. (b) The same map with the atomic model imposed on the density. (c) The same map but contoured at 5.0 r.m.s., revealing electron-rich regions that typically correspond to phosphate density, shown as a green mesh. (d) The same map as (c) with the atomic model imposed. (e) A cartoon ribbon diagram showing the correct phosphodiester backbone trace in green. |