10 20 30 40 50 UGUUUGGGUCUCUUCUG--| C GC U G A GUUCUAU GUC CUCUGGU AGUGGUUCU AACA UUCA CA \ CAG GAGACCA UCACCAGGA UUGU AAGU GU C AGACUCUUAGUCUCUGUCA^ U GU U A - UAAAACU . 110 100 90 80 70