10 20 30 40 50 CCAUCGGGGCUGACCAC--| U U - CU CUGAU UGGUGCC GGAAAGAAGU GC CCAUGUU UUUCG \ ACUACGG CUUUUCUUCA CG GGUACAA AAAGC A CCGAGGACGUCGACUCUAA^ C - U AC AGUGU 110 100 90 80 70 60