RR Distance Maps creates a distance map, a generalization of a protein contact map in which residue-residue distances are shown with color gradations. The map can show the Cα-Cα distances within an individual protein chain or the averages and standard deviations for multiple related chains (as in the figure). A simple binary coloring like a standard contact map can also be obtained.

Side-by-side views of a potassium channel structure (Protein Data Bank entry 1bl8) showing different approaches to cavity detection. On the left are molecular surface patches corresponding to the structure's two largest pockets by MS volume in the Computed Atlas of Surface Topography of proteins (CASTp) database. On the right is a tunnel in blue identified by the MolAxis server. Simple editing converted MolAxis output into a BILD file for display in Chimera. (More samples...)