10 20 30 40 50 60 UGGAUGGACCAGAGGAUA- UC -| C U C U AGGACU CC CCC GUCUA CCAGUGU UAGACUAC UGU C C GG GGG CGGAU GGUUACA GUCUGAUG ACA G C UGCCGCGGCUCCCAGAUUG UC U^ U C - U UUAAAC . 110 100 90 80 70