10 20 30 40 50 CUGGAUGUUGAUCCAAC--| AGC A CA C ACGUUUU AGAUAG CAGU CAGCCUUG GAUGGU AAAU \ UCUGUC GUCA GUCGGAAC UUACUA UUUA A UUCCGAGAUUACAACUACA^ GCU C AC C CAGAAGG . 110 100 90 80 70