10 20 30 40 50 60 UCCCGCACCCUUCGGGG----| AUC U UU GUGAGGU CAGUC GC GCUGUAAACAUCC GACUGGAAGCU G GUCGG CG CGACAUUUGUAGG CUGACUUUCGG U CGUCGUGGGUCCACUGACGUC^ A-- U -- GGGCGAC 120 110 100 90 80 70