10          20        30        40        50        60
GCAAAAACACAUGGAUU--|   CC   UCU UC  UG   C           ACGUUUAG 
                   GCGC  CUC   G  CC  AGA CCUAACUUGUG        U
                   CGUG  GAG   C  GG  UCU GGAUUGGGCAC        U
UGAGUCCUGUCUACGUCAC^   UU   UGU GA  GU   C           CUGAAUUU 
120       110       100        90        80        70