10 20 30 40 50 60 UACUGGAGCUCUUCUGUA U--| GU U A UUACC GGC GUAU UGUUAAUGCUAA CGUG UAGGGGUU U CCG UAUG ACGAUUACGAUU GUAC AUCCUCAG C UACACUUAAGACCAUUGU UAG^ UC - - UCAGU . 110 100 90 80 70