10 20 30 40 50 ACAAGUCCUCCUGUGAC- GAGG-| UUU C GUCAAU CCCUUA AUGACUGAUUUC UGGUGUU AGA \ GGGGGU UAUUGGCUAAAG ACCACGA UCU A GCCGACGUGCCACGAGAA AGUAA^ UCU - UUUAAU . 110 100 90 80 70