10 20 30 40 50 AACGUGCAUUAUUAAUA--| U A G C UGGUUU CGUUG CUAUAUGU CCCU UAGAA CGAAUUUGUG \ GUAGC GGUAUAUA GGGG AUCUU GCUUAGACAC U CGACCUUAGCUUCAUAAAC^ U - G A UGACAA . 110 100 90 80 70