Figure 3From: Molecular determinants of improved cathepsin B inhibition by new cystatins obtained by DNA shufflingThe hydrophobic core residues arising from the anti-parallel β-sheet of clone A10. The transparent cartoon shows the three-dimensional fold of the protein in blue, and the residues participating in the hydrophobic core are colored in orange. Threonine 30 (from the α-helix) and glutamine 97 are coloured in green.Back to article page