Fig. 8

Occurrence ratio of contacts formed by conserved hydrophobic residues. A number shown on the x-axes and y-axes denotes a conserved hydrophobic residue. The occurrence ratio is indicated by a percentage in each cell. a Conserved hydrophobic residues of three irregular beta-trefoil proteins in STI-like superfamily, including 1A8D, 1EPW and 3BTA. Red color indicates 100%. An orange cell is a contact that is preserved even in a β-trefoil with high structural symmetry. b Conserved hydrophobic residues of all four irregular beta-trefoil proteins used in this study. A cell highlighted by red denotes a 100% contact observed in these proteins and also observed in 26 proteins treated in the previous study [5].