10          20        30        40          50          
GACAGUGAUUCUUUCCU--    UUU      UU         U--| A    U  UUAUAAU 
                   GGGA   GGAAGC  AUCAGAAUC   CC GGGG AC       \
                   UCCU   CCUUCG  UAGUCUUAG   GG CCCC UG       U
GUCACUAAGAGUUUCCUCC    CUU      UU         UGU^ A    C  AAAAUGU 
 120       110       100        90        80        70