Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1w2yA 3e2dA 1w2yA 100 69 3e2dA 0 100 FOLD SIMILARITY (Z-SCORE) 1w2yA 3e2dA 1w2yA 41.1 0.7 3e2dA 0 75