10 20 30 40 50 GAUCACUGAUGAUGGCAA- - U -| C GA GUUUACU UCC UCGAG GGU CUGAU UCAAGUGGUG UAGA \ AGG GGUUC CCG GACUA AGUUUACCAC AUCU U UCUUAGUAUACGACUCACA U U U^ A G- AACAGUA . 110 100 90 80 70