Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3u9lA 4h15A 4q9nA 5j7mA 3u9lA 100 80 76 10 4h15A 80 100 78 9 4q9nA 76 78 100 0 5j7mA 0 0 31 100 FOLD SIMILARITY (Z-SCORE) 3u9lA 4h15A 4q9nA 5j7mA 3u9lA 49.2 23.3 22.1 0 4h15A 23.3 47.3 26 0 4q9nA 22.1 26 53.7 0 5j7mA 0 0 0 25.1