10 20 30 40 50 GGGAUCCCGGCUGACCU--| AA U GUGGUAG ACGGCAUGGUGUG CAGGUUAC UGUGGUGCAGU \ UGCCGUACCACAC GUCCAGUG GCAUUACGUCG U UUAGAGGUCCGCCUCUCUG^ CC U AAAAAGG . 110 100 90 80 70