10 20 30 40 50 UCUCGUUCCAGAUGCAC--| U A U CCC GGAA GGUAGUC GU GU GUAAACAUC GACUGGAAGCU \ UUAUCGG CA CG CGUUUGUAG CUGACUUUCGA A AGAAGGUCACAACAAAUAA^ C C U A-- UGCC 110 100 90 80 70 60