10          20        30        40        50        
AGGUGCAGGAGUAAAGAA--|         A     A                AGGGGA 
                    AGGGUUAUCG GAGCG GGUAUGGAGUUCUUAC      \
                    UCUUAGUAGU CUCGU CCAUACUUCAAGGAUG      U
AAAGAAAUACAACACCAAAA^         G     A                GGAAUU 
     110       100        90        80        70        60