10 20 30 40 50 CGGAAUCCCAGUUGACU--| A AAC U C GUGAUAG ACGGCAUGG GUG AGGUUAU CG GGUGCAGU \ UGUCGUGCC CAU UCCAAUG GC CUACGUCA U UUAGAUGUCUUCCUCUCUG^ A CCC U A UAUAAGG . 110 100 90 80 70