10 20 30 40 50 CAAGUGCUUAGAAGUUU-- U --| U U C UUGCA UCUUA UGCCUUC GGCU CU UACAGUGCUGC UUG U AGAGU ACGGAAG UCGG GA AUGUUACGACG AAC A UAAAGAACACUUCUUGUUC U UA^ - C - UAGGU . 110 100 90 80 70 60