10 20 30 40 50 AAUGAGCGUUGUUCGAG- C A A- U -| U GUGC UG CGCUUC UG ACGUAUACUGAA GUAU CC GA U AC GCGGAG AC UGCAUAUGACUU CAUA GG CU A GCUGUAGUUGCUACUAAC A A AA C U^ C AUUC 110 100 90 80 70 60