10 20 30 40 50 AACGUGUUUACUGAAAG--| UG G UG A CGGA ACUCUCUUCGG ACG GUAUUCUUGGG G UAAUA U UGAGAGGAGCU UGC CAUAAGAAUUC U AUUGU C CUACAACCCACUUCUCUCC^ GA G GU - UGCA 110 100 90 80 70 60