10 20 30 40 50 60 ACCUCAGCUGGUGUGAC--| C U A G GAGA CGUGUGC UC CG GGCCCC GAAAUCAAG AUGGGU CCU \ AG GC UCGGGG CUUUGGUUC UACCCA GGA A GUUUGUGCUGGCGAGAACA^ A U A A GC-- AAGUCAA . 110 100 90 80 70