10          20        30           40        50        60
GGUCCCAAUGCCCACAGC--                   ---|        CU     UUUGUG 
                    CUUAAGGAAGAGACCCUAU   CAAUAUUGC  CUGCU      C
                    GAGUUCCUUUUCUGGGAUA   GUUAUAACG  GAUGA      U
AACAACCUCUUACUUCCACA                   UUC^        U-     UGAGAC 
  120       110       100        90        80         70