10 20 30 40 50 CUGAAGAUCCUGGUCAC-- GA CA-| A G G UGAUAU GUCA GUAAUGU AAGUGCUU CA UGCAG UAG \ CAGU UAUUACG UUCACGGA GU ACGUC AUC A CUCUUCAGGACUCCGUCAA GA AUG^ A G - CAAGAU . 110 100 90 80 70