Figure 4
From: Robust probabilistic superposition and comparison of protein structures
Superposition of bound and unbound GroEL. Cartoon representation of the superposition of the bound and unbound state of GroEL (1AON (grey) and 1OEL (colored)) using a Gaussian model (A, D), a Student t (B, E) model and a K distribution (C, F). Large local scales are shown in red, whereas blue indicates small weights. The upper row (A-C) depicts the results of an EM superposition. The lower row (D-F) shows the ensembles of 25 orientations generated by the Gibbs sampling procedure. The ensembles obtained for the Student t and K distribution show little variance as opposed to the ensemble obtained with a Gaussian model.