10          20        30        40        50         
AAAACGGUAGGAAAAAU--|   U  A   UG           A        CGAUUUGU 
                   CUCU GU UUC  GGCUUGUUUUA GUUGCCUG        \
                   GAGG CG AAG  CUGAACGAAAU CGACGGAC        U
CCCAGAGGUAGCUUCAACG^   C  A   GU           -        UCAGAAAU 
      110       100        90        80         70        60