Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4cyiE 4cyiF 4zn8A 5vipA 5vipB 6az6A 4cyiE 100 99 0 67 74 51 4cyiF 99 100 0 66 56 76 4zn8A 0 0 100 0 4 3 5vipA 67 66 0 100 78 53 5vipB 62 48 0 78 100 60 6az6A 62 100 0 38 43 100 FOLD SIMILARITY (Z-SCORE) 4cyiE 4cyiF 4zn8A 5vipA 5vipB 6az6A 4cyiE 55 45.9 0 0 0 0 4cyiF 45.9 55.3 0 0 0 1.5 4zn8A 0.8 1.1 9.2 0 0 0 5vipA 0 0 0 46.8 19.5 0 5vipB 0 0 0 19.5 44.1 0 6az6A 0 1.3 0 0 0 32.3