Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2gdzA 4pw1A 5o3zA 2gdzA 100 57 77 4pw1A 61 100 82 5o3zA 77 76 100 FOLD SIMILARITY (Z-SCORE) 2gdzA 4pw1A 5o3zA 2gdzA 50.2 0 29.6 4pw1A 0 40.7 0 5o3zA 29.6 0 48