10 20 30 40 50 AAGGCACAUCUGUCAUGU-- C --| U U C UUGCA CUUA UGCCUUC GGCU CU UACAGUGCUGC UUG U GAGU ACGGAAG UCGG GA AUGUUACGACG AAC A GAAGACAAACCAUCUCUUCU U UA^ - C - UAGGU . 110 100 90 80 70 60