Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 5er9A 5ieuA 5ieuB 5er9A 100 0 0 5ieuA 0 100 96 5ieuB 0 96 100 FOLD SIMILARITY (Z-SCORE) 5er9A 5ieuA 5ieuB 5er9A 64.6 0 0 5ieuA 0 18.5 13.4 5ieuB 0 13.4 17.9