10         20         30        40        50         
CAGAAAACCCCUGGGGAG-   C-|                U    G      GACCAGC 
                   CCU  UGGCUGGGAAGGGAGGA CUGG CACCUG       U
                   GGA  ACUGACCCUUCCCUCCU GACC GUGGAC       C
GUCCCCUCGUCUACGACCA   CC^                C    -      GUCCCUC 
       110       100        90        80         70        60