Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1ldfA 2g7oA 2pn6A 1ldfA 100 0 10 2g7oA 2 100 0 2pn6A 9 0 100 FOLD SIMILARITY (Z-SCORE) 1ldfA 2g7oA 2pn6A 1ldfA 48.7 0 0 2g7oA 0.4 11 0 2pn6A 0 0 23.7