Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3c6fA 5hk7A 3c6fA 100 0 5hk7A 0 100 FOLD SIMILARITY (Z-SCORE) 3c6fA 5hk7A 3c6fA 18.6 0 5hk7A 0 20.6