10 20 30 40 50 ACGUCUCACUCGAACCU--| C GU A CGUU U ACGUAUU CACU UAAUGU UGCGU GG GUGCACAG G \ GUGA GUUGCG ACGCA CC UACGUGUC C A GAGGUACUACUACUGUAAA^ A AU C UCUU - UUAAUAC . 110 100 90 80 70