10 20 30 40 50 UCUCUGCAGAGGACUCU--| G AC U UGCUGUG UCUCAAG CCCUGUCUCCCA CCU GUACCAG C GGGGUUC GGGACAGGGGGU GGA CAUGGUC C CUCAACGACGACGACCCCA^ A CC - CCAGACU 110 100 90 80 70 60