Figure 2
The nature of radiation damage in PPE/Cd2+. The nature of the radiation damage in (a) the A data sets and (b) the B-data sets as exemplified by difference Fourier syntheses with the coefficients (FA-12 − FA-1) and (FB-8 − FB-1). The phases used were derived from the models refined against data sets A-0 and B-0. Shown is the positive electron density contoured at five standard deviations above the mean in green, and the negative electron density contoured at five standard deviations below the mean in red. The figure was produced using the programs MOLSCRIPT (Kraulis, 1991), BOBSCRIPT (Esnouf, 1997) and RASTER3D (Merritt & Bacon, 1997). |