10 20 30 40 50 CAUGGUCUACUAUUAGAACGC--| U C AC GUCACU GCUACG UUCCUUGUCA UUCUUCGUC GU \ CGAUGU GGGGAAUAGU AAGAGGCAG CA C ACAAACCAACAACUUCUUUACAA^ U C GU ACAUUC 110 100 90 80 70 60