10 20 30 40 50 AAUGGAUGCCAUAGUAAC--| U C G C GAAGC CUUUUUGCUG GUCAG UGUCAU AUG CUUCUU \ GAGAAGCGAC CGGUC ACGGUA UGC GAAGAA U GACCACGACGACGAGAAGGA^ C U G A ACAUC 110 100 90 80 70 60