10 20 30 40 50 UGCAUCAUGGGAAUUAA- - CG C --| U U C UUGCA GC UGGG CUU C AGCU CU UACAGUGCUGC UUG A CG ACCC GAA G UCGG GA AUGUUACGACG AAC C UGGCGUUCGGCUGCGGUG A AA A UA^ - C - UGUAC . 110 100 90 80 70 60