10 20 30 40 50 CCACGUUUUGCUUUAUU--| CAG UC C C U GGUACA UUGUG UGC CACUC AAAGGG GCCA UCA C AACAC AUG GUGAG UUUUUC CGGU AGU C UGUAUACAUCAACAUGUAC^ UUA GU U A U AUUAAA 110 100 90 80 70 60