Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4f7uE 4f7uF 5c69A 4f7uE 100 24 0 4f7uF 24 100 0 5c69A 0 0 100 FOLD SIMILARITY (Z-SCORE) 4f7uE 4f7uF 5c69A 4f7uE 18.9 12 0 4f7uF 12 18.3 0 5c69A 0 0 55.9