Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2cqzA 2qi9A 4pn8A 4pn8B 2cqzA 100 21 0 0 2qi9A 47 100 0 0 4pn8A 0 0 0 0 4pn8B 0 0 0 0 FOLD SIMILARITY (Z-SCORE) 2cqzA 2qi9A 4pn8A 4pn8B 2cqzA 34 0.2 0 0 2qi9A 2.1 57.2 0 0 4pn8A 0 0 0 0 4pn8B 0 0 0 0