10 20 30 40 50 GCUCUAACGCACCAUAU--| CU C C A UACAU UCUAAGGUCC UCCAG UCUGA AUUCU UGAUC \ GGAUUCUAGG AGGUC AGACU UAGGA ACUAG A CCAACUUGACCUACGAGAG^ AU A - A GAUAC 110 100 90 80 70 60