10          20        30         40        50        60
GCGGUUGGUCUGCAAAU-- UG      A  A-|   U    C           ACGUUUUC 
                   G  CCUCUC CA  UCCC GAGA CCUAACUUGUG        C
                   C  GGGGAG GU  AGGG UUCU GGAUUGGGCAC        U
GGCCGCCCGACUACUGUCU GU      A  CG^   -    U           GUGUAUUG 
120       110       100        90         80        70