Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1jekA 2fyzA 4d8mA 1jekA 100 25 0 2fyzA 25 100 2 4d8mA 0 0 100 FOLD SIMILARITY (Z-SCORE) 1jekA 2fyzA 4d8mA 1jekA 6.1 4.5 0.7 2fyzA 4.5 7.3 0.6 4d8mA 0 0 59.7