10 20 30 40 50 AGAUGAUUCAGAGUUCA--| ACUCU CCCU AC UGUUU GGCCA GACAGGCUGAG GUGCAA GCU \ UCGGU CUGUCUGGCUC CACGUU CGA U CCAUCGGUGACUUCGCCGU^ AGUGU UGAU A- CCUUA 110 100 90 80 70 60