10 20 30 40 50 CUCACCACGCUGCCUUU--| CUGA U A GAUGUG GAUUUCAAGAG AC AUUCUGCA CAUUUGUU G UUAAGGUUCUC UG UAAGACGU GUAAAUGA U CACCAGACGCUUCUUCUUG^ CUCG U C ACGUCU . 110 100 90 80 70 60