10 20 30 40 50 GCCCCGGGGGCGGCUGGU--| C C A CG GUGCU GGC UUUGAGGCGGAGUUCUGU AU CACU GACU \ CCG GAGCUCUGUUUCAAGACA UA GUGA CUGG A GCCCCCGUGGCUGCCUAGGC^ C C C -- GGUCC 110 100 90 80 70