10 20 30 40 50 60 CCAGCAGCGGCGCGUCCA- CG GUA-| U C UAUUCU GUGCU GUUU GGCAGUG AGUUAG UGAUUG A CACGG CAAA CCGUCAC UCAAUC ACUAAC C AAGCCGUCGGCCACUACGA AA ACUA^ C - GUCCGU . 110 100 90 80 70