10         20         30         40        50        60 
UACAACGAUAACAUAAAC-     ACU-    A     A-|  A      UUA   CAGAAUU 
                   UGUUA    AAUG CAUCG  AUC GACAGU   AGA       \
                   ACGAU    UUAC GUAGC  UGG CUGUCA   UCU       U
UCAUUAUAAAGCUACUAUU     CGUU    C     AA^  A      UAA   AAAAUAA 
  120       110       100        90        80        70