10 20 30 40 50 CGAGAGAAGAUACUGAG- UUGC-| A CG UC U GUGAU GCCUG CACA ACC UAGA CGA CUUGUG \ CGGAU GUGU UGG AUCU GUU GAACAC A GGGCGUCAGACACUCUAA UGUCU^ A AU GU C ACCUG 110 100 90 80 70 60