10 20 30 40 50 CAGAUGCCUGACAUUCU-- UGC -| UG C UGUUAU GAGGUGUUAU CAUC UUAC GGCAG AUUGGA \ CUCCACGGUA GUAG AAUG CCGUC UAAUCU C ACCGAAGGUACUACAUACG UUA U^ GU A UUGUCU . 110 100 90 80 70 60