Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1yu0A 3ebyA 3vtoA 3vtoB 3vtoC 1yu0A 100 63 32 40 43 3ebyA 71 100 0 0 0 3vtoA 31 0 100 89 90 3vtoB 43 0 89 100 99 3vtoC 45 0 90 99 100 FOLD SIMILARITY (Z-SCORE) 1yu0A 3ebyA 3vtoA 3vtoB 3vtoC 1yu0A 60.8 0 0 0 0.6 3ebyA 0 31.4 0 0 0 3vtoA 0 0 12.2 11 11 3vtoB 0.1 0 11 13.5 11.3 3vtoC 0.6 0.2 11 11.3 13.4