10 20 30 40 50 UCAUGAAUGUUUAGACUUU---| U C UG - U GCUAA CAG GUGUG GUCCU UUCA GCGG GUUGUGAU G GUC CGCAU CAGGA AAGU CGUC CAACACUA G AACAGCCACAUUCGUCGGUCCU^ - U GU U - CAGAA . 110 100 90 80 70 60