Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1f2lA 5djoA 5djoB 5ezuA 1f2lA 100 0 0 0 5djoA 0 100 99 26 5djoB 0 99 100 0 5ezuA 0 0 0 100 FOLD SIMILARITY (Z-SCORE) 1f2lA 5djoA 5djoB 5ezuA 1f2lA 15.8 0 0 0 5djoA 0 25 20.1 0 5djoB 0 20.1 26.8 0 5ezuA 0 0.2 0.8 17.1