10 20 30 40 50 AAAGAAGUGCACCAGAU--| CCCU C C A ACGU UCUAAGGU UCCAG UCUGA AUUCU UGAUCU \ GGAUUCUA AGGUC AGACU UAGGA ACUAGG A GACGAAGAGUCUACGAGAG^ AGAU A - A ACAC 110 100 90 80 70 60