Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1fi2A 1ko7B 5a96A 5a98A 6cl6A 1fi2A 100 74 53 70 72 1ko7B 68 100 78 63 54 5a96A 84 63 100 74 61 5a98A 71 88 76 100 76 6cl6A 66 54 21 76 100 FOLD SIMILARITY (Z-SCORE) 1fi2A 1ko7B 5a96A 5a98A 6cl6A 1fi2A 33.2 0 0 1.4 2.3 1ko7B 0 40.3 0 0 0.3 5a96A 0.6 0 39.5 26.4 0.5 5a98A 1.4 0 20.9 38.3 0 6cl6A 0 0 0 0 30.2