Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2p4gA 3ggmA 2p4gA 100 11 3ggmA 0 100 FOLD SIMILARITY (Z-SCORE) 2p4gA 3ggmA 2p4gA 45.3 0 3ggmA 0 16.2