Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3zokA 4y99A 4y99C 3zokA 100 0 0 4y99A 100 100 0 4y99C 23 0 100 FOLD SIMILARITY (Z-SCORE) 3zokA 4y99A 4y99C 3zokA 70.2 0 0 4y99A 0.3 25.1 0 4y99C 0 0 10.8