10 20 30 40 50 60 AUAGGAAGACUGUCCAGGU G U----| UG U AUUUCUGUGUU UU GGGCA GAACC GCA ACAAUGUAG U AG UCCGU UUUGG CGU UGUUACAUC G UGGGGAGGUGAAACAUAA- G CGACC^ GU C GACAACGAAUU 120 110 100 90 80 70