10 20 30 40 50 60 CGACAUCAACGAUGAUU--| C U UU G A G UAAG GUGUCGC UC UG ACGUAUACUGAA GUAU CC GA U CACGGCG AG AC UGCAUAUGACUU CAUA GG CU A CACUUACUCGCAACAAGCU^ A U U- A - A CACG . 110 100 90 80 70