10 20 30 40 50 UUAUAUCAUAAGGACAG- U - U A-| G UUUUUA GU UC AG AGUAUU AAGUGCUUAUAGUGCAG UAG \ CG AG UC UCAUGA UUCACGAGUGUUACGUC AUC U AAAAGGUACGUCUCUGAG U A U AA^ - UUAAAG . 110 100 90 80 70