Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3swnA 3swnC 4lxrA 4lxrK 3swnA 100 24 0 7 3swnC 24 100 3 0 4lxrA 3 5 100 0 4lxrK 0 0 0 100 FOLD SIMILARITY (Z-SCORE) 3swnA 3swnC 4lxrA 4lxrK 3swnA 18.9 12.1 0.3 0 3swnC 12.1 17.2 0.9 0 4lxrA 0 0 50.5 0 4lxrK 0 0 0 13.5