Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4c47A 6b9xA 6b9xB 4c47A 100 0 49 6b9xA 7 100 12 6b9xB 41 0 100 FOLD SIMILARITY (Z-SCORE) 4c47A 6b9xA 6b9xB 4c47A 26.9 0 0 6b9xA 2.2 6 0 6b9xB 0 0 28.2