10 20 30 40 50 UACGCUGCAGGAGGUUUCU--| AGG UC G AGUGUGU AGU UGGUA UUUGGUUAUCUAGCU UAUG \ UCA ACCAU AAGCCAAUAGAUCGA AUAC C GAACACCAACCGCCAAUACCU^ GCA GA A UGCCGGU . 110 100 90 80 70