10 20 30 40 50 AAAGAAGUGCACCAGAU--| CCCU C C A UACGU UCUAAGGU UCCAG UCUGA AUUCU UGAUC \ GGAUUCUA AGGUC AGACU UAGGA ACUAG A GACGAAGAGUCUACGAGAG^ AGAU A - A GACAC 110 100 90 80 70 60