10 20 30 40 50 GCAGUAUGUGAAAGAGU---| UA U C - AGCUCUGC GGAA UUC GGGAGUUGUAGU UUUCAA ACAG A CCUU AAG CCCUCGACAUCA AAGGUU UGUC A AAAGUAUCCGUCACUGUGAU^ C- C C A CAUAUAUG . 110 100 90 80 70 60