10 20 30 40 50 AUGGUCCGUCACGGGAU--| U C GU UU AGUGACA GUCAG GUCGG GCGGG UUUAUAG CAGUUU U CAGUU UAGUC CGCCC AAAUGUC GUCAAA C GCAGAUACGACAGCUGAGC^ U U UG CG AUUAUAG . 110 100 90 80 70 60