10 20 30 40 50 CUCGGUGUCCCUGUGUG----| UG AGA A AUA CUUUA GUACU GAG UAGU GACCGU GCGUACG U UAUGA CUC AUCA CUGGCA UGUAUGC C CCUUGGAGCUCCUACCUAAAC^ -- CCA C CAA AGUGU 110 100 90 80 70 60