10 20 30 40 50 60 GUUCUGGGCGAUAUUAAUCA- UC-| U U UAGAUUUAAGA AAGAUAAAA UCG GAAAUUCAGU UGAUGUG \ UUCUGUUUU AGC UUUUAAGUCG AUUAUAC U UCGCCUUGCCUACUUAUCUAA UUU^ U U UGUCUAUUCUA . 120 110 100 90 80 70