10          20        30         40        50         
UUGAGUUAAAACCUUGGC--  UCA             GU-|   CCA        CGUAU 
                    GU   GGAUAUGUUUUCU   UGCG   AGGGCAUA     \
                    CG   UCUAUACAGAAGA   AUGC   UCUCGUAU     U
AGCUUCAGUCACCUCUUCCU  CUA             ACC^   UG-        CAUCU 
       110       100        90        80         70        60