10 20 30 40 50 AUCACGUGCAGUUUGAU--| UCCGA C C UUC UGUGGCA CUCCU GC CCGUGCUUCUU AC CCAUA \ GAGGG UG GGUAUGAAGAA UG GGUAU U CUGAGAACCACAACUUUUU^ UGAUG A A UAA GUCGUGU . 110 100 90 80 70