10 20 30 40 50 CCGAGGUCUCCAGACAU--| C C G U A CGUGGAA CC UGA GUGGG GUAUGUGCCC UGGACU CAU G GG ACU CAUUC CAUAUACGGG ACCUGA GUA C UACCAUUACCGCUGGGUUC^ A C A U C CCACGAC . 110 100 90 80 70 60