10 20 30 40 50 60 UGACCAGCCAAGUUUGAA---| A G U C UUAUCUGCUAA AUG UCUUGACUU ACG AAUCUAGCAU AAU U UAC AGAAUUGGA UGC UUAGAUCGUA UUA U CUGUAUGCCUACAUAUUUCCG^ - G U - UAGUUAAUGAU 120 110 100 90 80 70