Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2dyuA 5ieuA 5ieuB 2dyuA 100 0 0 5ieuA 0 100 96 5ieuB 0 96 100 FOLD SIMILARITY (Z-SCORE) 2dyuA 5ieuA 5ieuB 2dyuA 57.1 0 0 5ieuA 0 18.5 13.4 5ieuB 0 13.4 17.9