10 20 30 40 50 CACAGGAUGUCCGAACU--| AGA U C GUGUAUC GGCUG CCUGGU CAAGUAAUC AGGAUAGGCU \ CUGAU GGAUCA GUUCAUUAG UCUUAUCCGG U AACCAAAACACACACACCA^ GGG C C UUGGUCC . 110 100 90 80 70