Figure 8 - full size

Figure 8.
Fig. 8. Active center. Stereoview from the Rpb2 side toward the clamp. Two metal ions are revealed in a [A]-weighted mF[obs] DF[calc] difference Fourier map (shown for metal B in green, contoured at 3.0 ) and in a Mn2+ anomalous difference Fourier map (shown for metal A in blue, contoured at 4.0 ). This figure was prepared with BOBSCRIPT (85) and MOLSCRIPT (86).