10          20        30        40        50          
GACGGUGUCGCGGACUC--| G         C         U    G    A  GUUCUGU 
                   GC CGCUGGGUC AGUGGUUCU AACA UUCA CA       \
                   CG GCGGCCCAG UCACCAGGA UUGU AAGU GU       A
AACGACAGUGGCGGCGGUC^ G         A         U    A    -  UAACGCG 
.       110       100        90        80        70