10 20 30 40 50 UCUCAACAUCAAACCACAAU--| UUU A AA U A ACCUC GC GCUA AGCUGGU AA GG ACCAAAUC U CG CGAU UCGACCA UU CC UGGUUUAG U UUGGCAAGUACUACAGUAGUUU^ UAU G AC C C GUAAC . 110 100 90 80 70 60