10 20 30 40 50 GCAGCGGCAGCUCCUCU--| U - AC U UGCUGGG CCCCA GG CCCUGUCUCCCA CCU GUACCAG \ GGGGU CC GGGACAGGGGGU GGA CAUGGUC C CCGGACGGCCACGGCCCCA^ - A CC - CCAGACU 110 100 90 80 70 60