10 20 30 40 50 UCACAUUGGUAGACACAGUCA--| U A CGACUUGU GGC UUCCAGGCUUGUUUUA GUUGCCUG \ CCG AGGGUCUGAACGAAAU CGACGGAC A AGCCCCCAACUCCCACACAGACA^ C - ACAGGUUU 110 100 90 80 70 60