10 20 30 40 50 AGGGUACAAUACAAUAA--| C G UCGA GCUC UUAUGGGCAGGGAACAU UCUGCUAAUUGU U UGAG AAUAUCCGUCCCUUGUA AGGCGAUUAACA A GAGGGGGUGAUCUGGUAUU^ U G CGAC 110 100 90 80 70 60