10 20 30 40 50 CGAAUUUGGGACGUGCU---| U C G - UG C UGAUCC GAGA GUC UCA CAUC UUAC GGCAG AUUGGA \ UUCU CGG AGU GUAG AAUG CCGUC UAAUCU A GACGCCCGCGCCACGAGUCC^ - A A U GU A CGCCGU . 110 100 90 80 70 60