10 20 30 40 50 AGCGGCGGCUCCUCUCU--| C - AACC U UGUGU CCUCA GG CCCUGUCUCCC CUUGUACCAG G \ GGGGU CC GGGACGGAGGG GGACAUGGUC C C CGGACCGCGACGACCCUAG^ - A GCAU C AGACU 110 100 90 80 70 60