10 20 30 40 50 UCUGUUACGUCUGAAAAC--| A G - A AC UUGC UCA AGGCA CC UGUAAGUUUAU UAGUCCC AGU U AGU UUCGU GG GCAUUUAGAUA AUCAGGG UCA G AGACGUGCGACAACUAAGAC^ C - C C C- AGAA 110 100 90 80 70 60