10 20 30 40 50 UUUGCAGCCUCAGCUUAA- ACCC-| C UU UUGCUC AGG CCA UACU AAUGUGGAAGUACUUGCU \ UCC GGU GUGA UUGUACCUUCGUGAAUGA C ACAAGACGUCAACUUUUAG AAAGU^ A UU AAUAGU . 110 100 90 80 70