10 20 30 40 50 ACCAAGAAAUUACUCAA--| U A U CGC UUCACAA AC UGC UCGGUGUCAGC GU GAUGCCUUCUU \ UG ACG AGCCACAGUCG CA UUGUGGAAGAA U ACCAGUAACUUCCGCUUAU^ U A U CCA CGAUCUU . 110 100 90 80 70