10 20 30 40 50 60 CUGGACACUGGAGGAAG---| U GU - GAU UUUGU GGUGU GAUCGG GCUCAGUAGCUAG UGUAG CUGU C CUACA CUAGUC UGGGUCAUUGGUC ACAUC GACA A UCAUCGAAAUCAGCGAAUCC^ - UC U --- UCUUU 120 110 100 90 80 70