Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2rekA 2rekB 3sjqA 3sjqC 5ikfA 5ikfB 2rekA 100 99 37 3 10 0 2rekB 99 100 38 5 12 0 3sjqA 38 39 100 10 0 0 3sjqC 2 30 15 100 17 22 5ikfA 26 28 0 0 100 28 5ikfB 42 40 0 0 29 100 FOLD SIMILARITY (Z-SCORE) 2rekA 2rekB 3sjqA 3sjqC 5ikfA 5ikfB 2rekA 33 27.9 0.5 1.6 0.6 0.9 2rekB 27.9 33.2 0.3 2.1 0.5 1 3sjqA 0.5 0.8 21.7 1.6 0 0 3sjqC 0 0 1 13 0 0.3 5ikfA 0 0 0 0 23.9 0.1 5ikfB 1.2 1.1 0 0 0 21.4