10 20 30 40 50 60 CUCUUCAGGAGACAACC----| AU UGUGU U ACA GUGAGC AUG GUAG GUAAACA CCU CUCUCAGCU \ UAC CGUC CAUUUGU GGG GAGGGUCGG U CUUCAAGUAGACCCCAAAAGG^ -- UUCCU C A-- UGGAAC . 110 100 90 80 70