10 20 30 40 50 60 70 80 CCUGGUAGCCUAUAGAGU--| CCA G GG UGAGCUAUUACAUACCAUACUGAUACUAUACUG GU UGG UUGUAGAUUGGGCUU UCGGCAGA G CA ACC AACAUCUGACCUGAG GGUCGUCU C CUCUUCUGGAACUCACAUCU^ CUG A UU ACUAAGUGGUGACUGACUAUGACAUGUGACAUC 170 160 150 140 130 120 110 100 90