Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1wn1A 3ogkA 4cogA 6bq6A 1wn1A 100 46 60 61 3ogkA 50 100 0 50 4cogA 69 35 100 94 6bq6A 57 69 82 100 FOLD SIMILARITY (Z-SCORE) 1wn1A 3ogkA 4cogA 6bq6A 1wn1A 58.4 0 0.3 0 3ogkA 0 24.6 0 0 4cogA 0 0 40.5 1.5 6bq6A 0 0 0.9 54.3