Figure 13
From: Using least median of squares for structural superposition of flexible proteins
If the number of atom pairs on the flexible regions is larger than one on the core region, the LMS fit based on the minimal median measurement can not get good superposition. (a) The LMS fit for the Pneumolysin system: 2bk1 (light gray) and 2bk2 (dark gray), using the minimal median measurement. (b) The improved superposition through changing the parameter of the LMS fit, i.e. replacing the median (50%) by the first quartile (25%). The superposition differences are highlighted in the ellipse regions with the dashed boundary.