10         20         30         40        50        60  
UUAUGGACCAUUCGCUACU-   GUU-      A-| U     C  CA       UGGUCAGGU 
                    GCU    CGGCUU  CG GUCAC UA  GCCAUGC         \
                    UGA    GCUGAA  GC CAGUG AU  CGGUACG         G
AUAAGAAAACGACUAAAGAC   GUGU      AA^ U     U  A-       ACAGAAUCU 
   120       110       100        90        80         70