10 20 30 40 50 GGCCGAGGGCCCCGCGU--| AGU UGUCGC GGGUGCGGGCGUGUG GUGUGUGUGUGAGUGUG U CUCACGCCCGCACAC CACACACGUACUCGCAC C CCGGCUCCCCCGUCUCGUC^ C-- CUGGAC 110 100 90 80 70 60