10        20          30        40        50        60
AAAUACAAUAUUCAGCAAAA--|      AUAAA         CU           UUACU 
                      GGUUGCG     CAUUCAUUG  GUCGGUGGGUU     U
                      CCAACGU     GUAAGUGAC  UAGUCACUCAA     U
GAAAUCACUUGUCUCUACAAAC^      CAAAC         --           CAAAU 
.       110       100        90        80          70