10 20 30 40 50 ACAACUUCCGGCACACA--| C GC U G A UUCUCU GCCUU CUGGU AGUGGUUCU AACA UUCA CAG \ CGGAG GACUA UCACCAGGA UUGU AAGU GUU A GAGGAACUAGCUACGUUAC^ C GU U A - AAAGCU . 110 100 90 80 70