10 20 30 40 50 AGGAUGGAGUAGCCACUG--| UU U C UGUGUAC UGG CUGGU UCAAUCCAUAC AAGAUUUUCUA \ ACU GACCA AGUUAGGUGUG UUCUAAAAGAU A ACUAGAGACUCAUAUAUUAG^ GG U - CUAAUAA . 110 100 90 80 70