Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2c92A 2c92E 5cddA 2c92A 100 99 16 2c92E 99 100 50 5cddA 16 49 100 FOLD SIMILARITY (Z-SCORE) 2c92A 2c92E 5cddA 2c92A 32.6 30.6 0 2c92E 30.6 32.4 0 5cddA 0 0 32.6