10 20 30 40 50 AGGAAUCCAGGAGGCCA--| UUU A AA U A CAACUG AAUGC GCUA AGCUGGU AA GG ACCAAAU U UUACG CGAU UCGACCA UU CC UGGUUUA U UCCGACGUAGACACGCUAG^ CGU G AC C C GGUAAC . 110 100 90 80 70 60