10 20 30 40 50 GCAUAAAACCUGUGAUUGU----| UCU AG - G ACUGC CGC GCGAG AGGUGUUU CAUGG CGCUAC U GUG UGUUC UCUACAAA GUGCC GCGGUG C UAAAGGCGAGCGACACUUAAGAU^ C-- CA U - AAAGA 110 100 90 80 70 60