10           20        30        40        50          
CCCCCGCCCCCACCUGGCA---| CAGCC    C    U  CCU  A        GUGACGC 
                      CG     UCCA CACC CC   GC AACGUCCA       \
                      GC     AGGU GUGG GG   CG UUGCAGGU       A
CGCCCCCGGGCCGCCCCCCCAG^ UGAC-    C    C  UCU  G        AAUGGAG 
 .       110       100         90        80        70