10 20 30 40 50 60 CUGCUGAGGCUCGAUCG-- GG U-| CG UUCUUUUGC GCUAGA CUGUG GAUAUGUUUGAUAUU GUUG \ CGGUCU GACAU UUAUACAGACUAUAA CAAC U UUUUACUAAUCUACAGUCA GA CC^ AU UGUAUUAUU 120 110 100 90 80 70