10        20          30        40        50    
AAUUACCAAAAUAAUUUUAAAA--|   G            A        G   U 
                        UCUA GCAAAUUUAUUU UGCGCUCU AUU A
                        AGAU CGUUUAAAUAAA ACGCGAGA UAA A
GAAAAACCAUUAAGAAGUUUAUUA^   A            A        G   A 
.       100        90        80        70        60