10 20 30 40 50 GCUCUAACGCACCAUAU--| U C C A UACAU UCUAAGGUCCC UCCAG UCUGA AUUCU UGAUC \ GGAUUCUAGGG AGGUC AGACU UAGGA ACUAG U CCAACUUGACCUACGAGAC^ U A - A GAUAC 110 100 90 80 70 60