10          20        30        40        50     
UGACAGGGAAUAAGUUU--|  AGU   UCCAC                 G   UU 
                   CUG   CCC     UUCAAAUAUCUACUGAU GAA  \
                   GAC   GGG     AAGUUUAUAGGUGACUA CUU  U
GCAACAAGGAGCCGUAUCA^  CCU   UGUUA                 A   AA 
 .       100        90        80        70        60