10          20        30        40        50        60
GUGAGAAAUCAUUGAAU--|   CC   UCU UC       C           ACGUUUUG 
                   GCGC  CUC   G  CCUGAGA CCUAACUUGUG        G
                   CGUG  GAG   C  GGGCUCU GGAUUGGGCAC        U
UAACCUCUUCCUACGUCAC^   UU   UGU GA       C           CUGAACUU 
120       110       100        90        80        70