10 20 30 40 50 GUUCGAAUCGCUCUGUCCCCAG--| C A CG AGACUGUCUG ACAAG ACAC UACAACU GUCGUA G UGUUU UGUG AUGUUGG CAGCAU U ACCAACUGGUAAGCCUAAUUAACA^ A C AU AGACUUGUAA . 110 100 90 80 70 60