10        20          30        40        50         
GUACAUAUAACAAAUACAAACGUU--|  U          C  A      A    GACAU 
                          GCG UUCCUUGUCA AC UUCGUC CAGU     \
                          CGU AGGGAAUAGU UG AGGCAG GUCA     U
CAACUGUAGCACUUCUUCAAAGGAAU^  U          C  A      -    CAAAC 
      110       100        90        80        70         60