10 20 30 40 50 UACGCUGUACUUGACUG----| AC AG UU - UGUUUGU AUGG UUGCGG GCUUCAUUA GCU GCUUUG U UACC AACGCC UGAGGUAGU UGA CGAAAC G GAGUUACCCUAAGGACACCGU^ -- GU UU A CCGGCAA . 110 100 90 80 70 60