Figure 4 Cumulative distributions of H for three twins: (a) 1rxf (Morgan et al., 1994), (b) 1ku5 (Li et al., 2002) and (c) 1gwy (Mancheno et al., 2003). In 1ku5 and 1gwy , RPS interferes with twinning. Experimental distributions are represented by red dotted lines. The intensities derived from atomic models were used to simulate cumulative distribution of H for different twinning fractions (thick blue lines), the values of the twinning fractions being given over the corresponding lines.

© International Union of Crystallography 2006