Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4mi8A 4mi8C 5by8A 5by8B 4mi8A 100 0 0 0 4mi8C 0 0 0 0 5by8A 0 0 0 0 5by8B 0 0 0 0 FOLD SIMILARITY (Z-SCORE) 4mi8A 4mi8C 5by8A 5by8B 4mi8A 29.7 0 0 0 4mi8C 0 0 0 0 5by8A 0 0 0 0 5by8B 0 0 0 0