10          20        30        40        50         
UCUGGUGCCGGGUGUUU--|  C        CC   C    AG      CU    GGGUU 
                   GAG GGCUGGAA  GGG CCGG  CGCUGU  GAGA     \
                   UUC CUGACUUU  CUC GGCC  GUGACA  CUCU     U
CUCUCUAGUCCUUCUAAUC^  U        UU   U    AA      --    UUGAA 
     110       100        90        80        70          60