10 20 30 40 50 GUCGGGUAAAGUACAUG----| CU A G - U C UAGAAA CUCA UGUGA CA CGGCUUG CGGG CCAGU GG \ GAGU ACACU GU GCUGAAC GUCC GGUCA CC G GUACAUAUACCUACGCUCGAC^ -- C G C - U UUUAGA 110 100 90 80 70 60