Figure 3.

Sequence alignments of papain (1PPN) with lipocalin (1MUP), ragweed (3BBG), and defensin (1AYJ). Residues that are conserved are shown in white on a black background, negatively charged in green on a red background, positively charged in white on a red background, amide in green on a khaki background, alcohol in white on a khaki background, aliphatic in red on a light green background, aromatic in white on a light green background, small in red on a dark green background, sulphur containing in white on a dark green background, and proline in black on a white background.