10             20        30        40        50        60
UAAGGAAUAAAUUUUGU-----|   CCUC     C       U        C   U AGGAGG 
                      GCCU    GUCUG CCAGUGU CAGACUAC UGU C      U
                      CGGG    CAGAU GGUUACA GUCUGAUG ACA G      U
UCCGAGACACUACGAGUCGGUA^   U---     U       C        -   U UUGUUG 
 .       110       100           90        80         70