Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3osvA 3osvB 5i4hA 5i4hB 6et9A 6et9F 3osvA 100 99 0 53 61 0 3osvB 99 100 0 55 68 32 5i4hA 0 0 100 0 23 0 5i4hB 45 49 0 100 36 12 6et9A 50 58 0 34 100 28 6et9F 35 24 0 28 35 100 FOLD SIMILARITY (Z-SCORE) 3osvA 3osvB 5i4hA 5i4hB 6et9A 6et9F 3osvA 26.7 25.2 0 2.2 0 0.7 3osvB 25.2 26.7 0 2.1 0 0 5i4hA 0 0 23.2 0 0 0 5i4hB 2.2 0 0 26 0 0 6et9A 0 0 0 0 81.7 0 6et9F 0 0 0 0 0 25