10 20 30 40 50 UCGUGCAUUCUCCGAGU--| U AUC G G UU UUUCUU ACUUGGUA UU GGUGAAUUC ACC UGGU UG \ UGAACUAU AA CUACUUAAG UGG GCCA AC U GAAUGUCAUCUACAUACUU^ U GAC A - CU AAUCUU . 110 100 90 80 70