10 20 30 40 50 CGGCCGAGGGCCCGCGU--| AGU UGUCGC GCGCGCGGGCGUGUG GUGUGUGUGUGAGUGUG \ CGCGCGCCCGCACGC CACACACGUACUCGCAC U CCGGCUCCCCCGUCUCGGC^ C-- CUGGGC 110 100 90 80 70 60