10 20 30 40 50 CUCCCCGCGGACCCUCA--| C GC U G A UUCUCU GCCUC UUGGU AGUGGUUCU AACA UUCA CAG \ CGGAG GACCA UCACCAGGA UUGU AAGU GUU A CGACGGCCGGCUACGGGCC^ C GU U A - AAUACG . 110 100 90 80 70