Proteins treated in this study. (a) Tertiary structures of the study proteins obtained from the Protein Data Bank. Their names are shown above the structures. α helices and β strands are represented with helices and arrows, respectively. These protein models are created by Visual Molecular Dynamics 1.9.1. (b) Amino acid sequences of the study proteins. The filled circles above them denote the location of decadal number residues. Arrows and helices below the sequences indicate the location of secondary structures.