10 20 30 40 50 60 CCCAGCUGGGAGGCCGGA-- U --| U UC U U UGAACUA AGUUUC UGUGCUA AGG GCA UAG GCAGU AG G UCGAGG ACACGGU UCC CGU GUC CGUCA UC C UCGUUUCGGAGUGGUAGAAG C CU^ U GA C - UCAGAUU 120 110 100 90 80 70