Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3lcmA 4fglA 5j7mA 3lcmA 100 74 25 4fglA 74 100 3 5j7mA 26 7 100 FOLD SIMILARITY (Z-SCORE) 3lcmA 4fglA 5j7mA 3lcmA 36.7 23.4 0 4fglA 23.4 41.5 0 5j7mA 0 0 25.1