10 20 30 40 50 60 GCUCUGGAUGGGUGGCG-- UG C -| A U GUGCUGG GGG GGGGCC CCGUC UUACCC GCAGUGUU GG U UCU CCCCGG GGUAG AAUGGG CGUCAUAA CU U CACCUGCAGCGACCGUGAC GU A U^ C U CUGAGGG 120 110 100 90 80 70