10 20 30 40 50 UCACGUCCUCCUGUGAC- UAGAGG-| UUU C GUCAAU CCCU AUGACUGAUUUC UGGUGUU AGA \ GGGG UAUUGGCUAAAG ACCACGA UCU A GUCGUAGUACCACGAGAA UUAGUAA^ UCU - UUUAAU . 110 100 90 80 70