10 20 30 40 50 UGCUCAGCACGCUGCCC--| C U CUGG A A UCACU GC GCCC GGG AUAUCAUC UAUACUGUA GU A CG CGGG CCC UGUAGUAG AUAUGACAU CA U CGUCGAGAGCCCCAGCCCA^ U U CUCA - - CAGAG 110 100 90 80 70 60