10 20 30 40 50 AAAUCCGAGCUCUCUCA--| UG GC U G A GUUCUGU GCC CUGGGU AGUGGUUCU AACA UUCA CA \ CGG GGCCUA UCACCAGGA UUGU AAGU GU A AGACAGGGCGCUGCGCGUU^ CA GU U A - UAAUACG . 110 100 90 80 70