Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1g2cA 2fyzA 3zh0A 4il6M 5absA 1g2cA 100 8 0 6 18 2fyzA 8 100 0 9 9 3zh0A 0 0 100 0 0 4il6M 12 15 5 100 3 5absA 14 11 0 12 100 FOLD SIMILARITY (Z-SCORE) 1g2cA 2fyzA 3zh0A 4il6M 5absA 1g2cA 7 5.2 0 2.7 4.7 2fyzA 5.2 7.3 0 2.4 5.4 3zh0A 0 0 33.7 0 0 4il6M 2.7 2.4 0 5.3 2.3 5absA 4.8 5.3 0 2.2 7.9