10 20 30 40 50 CCUCCUGUAGGAAUUUGGU--| CA UC CCU CCCAAU UUUGUA GA CUUAUUCAA GGUUGUGGUG \ AGACGU UU GAGUAAGUU CCAACACUAC A CCCAACUAUAACGCCACCACC^ UC GU CCU UACCAA . 110 100 90 80 70