10 20 30 40 50 UCCUUGAAGAGAAAGGA-- GGA U -| U U C UUGAAC GAUC AACAC UCUC AUGUG ACAU GAGA GUU \ CUGG UUGUG AGAG UACAU UGUA CUCU CAA A UUGUAUAGGCAAGUCAUAA GAG C A^ C - A AAGUCU . 110 100 90 80 70