10 20 30 40 50 AAUGCAAGGAAAACUUGAC--| U CA AAA UGGAA UUCUC UUAGG GCUUUUG AUUAUGCAAUU \ AAGAG AGUCC CGAAAAC UGAUACGUUAA A UUUAUUAUCUAAGUAUACAGU^ U AG AC- UAACU 110 100 90 80 70 60