Fig. 4From: Proteus: An algorithm for proposing stabilizing mutation pairs based on interactions observed in known protein 3D structuresExample of cysteine cluster. In this example, we can see two CYS-CYS clusters (a-b) and two ASP-ARG clusters (c-d), which were obtained from the structural alignment of all triad pairs with an RMSD score of 0.5 ÅBack to article page