10 20 30 40 50 UAAGUCACUGACACAUU--| UG G CA AC CUGAA GCGA U UGCAUUG UUGCG GGGUUACAUCA U UGCU G AUGUAGU GACGC CCCAAUGUAGU U AAAUUUAGAGGUUGCAUAC^ GU A AC AA ACGAU 110 100 90 80 70 60