10        20          30        40        50      
UUUUGGUUAAAUUGGUCAUAUCGU--|              G  U         GUU 
                          UGUUCCUGAAAGUCU AU GGUCUUAUC   \
                          ACGAGGACUUUCAGA UA CCAGAAUAG   G
CCCUAAAAAAAAAAUAAUAAUAAUCC^              G  -         CUC 
110       100        90        80        70         60