10 20 30 40 50 GUGUAGCGUUUCCAACC----| UU ACACU UACA UUAACAA GAGU CAG GUAAACAUCC CUCAGCU \ UUCG GUC CAUUUGUGGG GGGUCGG G GAAGGCUCCGCCACUAAACGG^ -- AAUCU CAGA CGAAAAU . 110 100 90 80 70