10 20 30 40 50 UUCCCGUUUUGGUGGAAC---| G U C U CAUU AAUAUUGU UCU AGAAUGUGAAAGGC AU AGA U UUAUAGCA AGA UCUUACACUUUCCG UA UCU U GUUAUAAGUGCUACAUGAGCU^ G U A C UUGU 110 100 90 80 70 60