10 20 30 40 50 GAGAUGUUGGUGUCAGCACCAUCC-- GU U A-| G GCGUGCA AGGGU GUGACUGG UG CCA AGGG C UCCCA CACUGAUC AC GGU UCCC U CAGAAGGACCCCACCCUCACUACGAC AC C CG^ G ACUUGUG . 110 100 90 80 70 60