Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2b9cA 2b9cB 2z69A 2z69B 5decA 2b9cA 100 83 0 0 2 2b9cB 57 100 67 39 68 2z69A 0 0 100 96 48 2z69B 0 0 96 100 45 5decA 0 0 64 74 100 FOLD SIMILARITY (Z-SCORE) 2b9cA 2b9cB 2z69A 2z69B 5decA 2b9cA 9.2 4.9 0 0 0 2b9cB 7.4 9.4 0 0 1.5 2z69A 0 0 28 22.6 0 2z69B 0 0 22.6 28.4 0 5decA 0 0 0 0 32