10          20        30         40        50        60        70  
UCCCACAAUACGCAUAAC--    U           -|     U    U      UGUUGACGUUUGGGUUCUU 
                    AUAU UGCUAGGUAGC CUCUCC AGGC UUGUCU                   G
                    UAUA ACGAUUCAUCG GAGAGG UCUG AACAGA                   G
GCACAUGGCCAACUGAAAGC    U           C^     U    C      UCUUAAAGAAAACGGCUUC 
     140       130       120       110       100        90        80