Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3e05A 3e05D 3ku3A 3ku3B 3e05A 100 99 65 54 3e05D 99 100 65 0 3ku3A 62 62 100 30 3ku3B 55 0 0 100 FOLD SIMILARITY (Z-SCORE) 3e05A 3e05D 3ku3A 3ku3B 3e05A 38.8 36.5 0 0 3e05D 36.5 38.8 0 0 3ku3A 0 0 45.4 0 3ku3B 0 0 0 23.9