10 20 30 40 50 AUGACCUCAGGUCACAC--| ACGGG G U AUGAUGC GCAGC GU UGGAGGUCGCACGUC UGCUGU \ CGUCG CA GCCUCCAGUGUGCGG ACGACA U GGAUGCAGACCGGCCUGUG^ CGACA G U CACAAGG . 110 100 90 80 70