10 20 30 40 50 AUCACGAUCACGUCCUC----| CG CCG A UC- U UGUGAA AGC UGUAC AG GACUUU GGCC AGUAAG U UCG ACAUG UC CUGAAA CCGG UCAUUC U GUCUACUUCAAUAUCUUCCAG^ -- AAA C UGU - UGCAAG . 110 100 90 80 70 60