10            20        30        40        50        60 
AGUAUGUCUCUCUUUAC----|  AUGU      U        CUAU          GUUGUGC 
                     CCG    GCAUCU AUGGCUUU    UCCUAUGUGA       U
                     GGU    CGUAGG UACCGAAA    GGGAUGCACU       C
CGUUUCAGUGCACCUGCCAGG^  CU--      U        CUU-          AGGAGUU 
 120       110       100          90        80         70