10         20         30        40        50        60 
AUUACAAGCUGAAAUCA-   -|   CA                C       UUAGAGUGGU 
                  AGA UUGC  GGAGAAAUAUCAACAG CUCAGAU          \
                  UCU AACG  CCUCUUUAUAGUUGUC GAGUCUA          A
AGAAGUAAAAGACGGUAA   C^   UC                A       UACGUCUAUU 
 120       110       100        90        80        70