10        20          30        40        50         
CACAGAUAACAAAUACAACGUGUU--|  U          C  A    CCA    GUCAU 
                          GCG UUCCUUGUCG AC UUCG   CAGU     \
                          CGC AGGGAAUAGU UG AGGC   GUCA     U
CUACUGUAAUACUUUUUCAAGGGAAC^  U          C  A    AG-    CAAAU 
      110       100        90        80        70         60