10          20        30        40        50        60
CAACUCAGCUUCAUAUCC--|   UCCCA        U    CU    C     GUGAUGU 
                    AGGG     UCUAGGUC GAUA  CUAU UUUCA       U
                    UUCC     AGGUCCGG CUGU  GAUA AAGGU       C
AAAGUUAUCUCAGGAUCGGU^   UGUGA        U    UU    C     CCAAAAU 
120       110       100        90        80        70