10 20 30 40 50 CCGGCGGGCGGCGGGCA--| C GC U G A UUCUCU GCCU CUUGGU AGUGGUUCU AACA UUCA CAG \ CGGA GGACCA UCACCAGGA UUGU AAGU GUU A GAGGAGCGGCCUACGGGCC^ A GU U A - AAUACG . 110 100 90 80 70