10          20        30        40        50         
CCCGGAGUCCUCAUGAU--| C   U UG  G          U      A   CGUGGAA 
                   CC UGG G  AG GUAUGUGCCC UGGACU CAU       G
                   GG ACU C  UC CAUAUACGGG ACCUGA GUA       C
CGUCGGCACUUCUUUAUUU^ A   C GU  A          U      C   CCACGAC 
.       110       100        90        80        70        60