Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3a1mA 3a1mC 4ku0A 5exeC 5exeD 3a1mA 100 99 28 79 0 3a1mC 99 100 39 78 0 4ku0A 22 44 100 0 0 5exeC 0 0 0 100 69 5exeD 0 0 0 70 100 FOLD SIMILARITY (Z-SCORE) 3a1mA 3a1mC 4ku0A 5exeC 5exeD 3a1mA 12.1 11.5 4.4 0 0 3a1mC 11.5 12 4.9 0 0 4ku0A 4.5 4.2 11.8 0 0 5exeC 0 0 0 57.9 7.4 5exeD 0 0 0 7.2 75