10 20 30 40 50 60 CACUAUAUUUAAGUAAC--| U A UG UC GUGGAAUA ACUAGU UUACA UGUAUUACU GUGACC UGU G UGAUCA AAUGU AUAUAGUGA CACUGG ACA A CCUCUCUUACGACAGCGUG^ U A GU GA UUACAAUU 120 110 100 90 80 70