10 20 30 40 50 60 CCGCGUGUCCGGGACGG--| CCU U A UGCGCUGGA GAAUCUCUGCU GAU GUCCA ACGCAAUUCUUG G UUUAGAGACGA CUA CAGGU UGUGUUAAGAAC C CCGGGGCGGCCACUUCAGC^ UGU - C CAAGCAUGC 120 110 100 90 80 70