10          20        30        40        50         
CCCUAGAUCUACAGAAAU--| A   C              A    GA      UUCAAA 
                    CU UCA UGCUUUUUAGGAUA GCUU  CUUUUG      U
                    GA AGU ACGGAAAAUCCUAU UGAA  GAAAAC      A
GUACAGUCUUUGUGUAAUUU^ C   A              G    AG      GUAAAA 
.       110       100        90        80        70        60