10          20        30        40            50        
ACCGAUUGAAGGAAUUG--     UG CG             C----|         GAGGAA 
                   CCUUG  C  UCAAUCCCUGUUC     CAAGCCAUCA      G
                   GGAAU  G  GGUUAGGGACGAG     GUUCGGUAGU      U
ACAUAUCACACAACUUUUC     GU AG             UUAGC^         AGAAGU 
120       110       100        90        80        70        60