10          20        30        40        50        60  
ACCUGUGAAAAUACAGU--| UG   U  UGC          CCC           GUAAAAU 
                   UG  GUC GU   UGUAAACAUC   GACUGGAAGCU       \
                   AC  CGG CA   GCGUUUGUAG   CUGACUUUCGA       A
GGUAAAACUUCUUAGACCU^ GU   C  CCA          A--           CCUCUUG 
 120       110       100        90          80        70