10 20 30 40 50 CACAAACUCCAGCCUGU---| CCA CC A C - C UGGGU GC GCAGC CUG GAA CA CGUCUG UCUGAGC A CG CGUCG GAC CUU GU GCAGAC AGACUUG C UUAGGUCUCCUUGCCCCGGU^ AC- CA C C C A UCCGU . 110 100 90 80 70 60