10 20 30 40 50 CUACCAGAGCUAAUCUC--| U U - AU CUUUA UGGUACC GAAAAGAAGU GC CCAUGUU UUUCG U ACUAUGG UUUUUCUUCA CG GGUACAA AAAGC A UCGAGAAGUACCACUCAAA^ C - U AC AGUGC 110 100 90 80 70 60