10 20 30 40 50 60 CUGGGGCCCCGAGACAG- -| C CGC U C UCAGGGGAC CC GGCCC GCC CCAGUGU CAGACUAC UGU U GG CCGGG CGG GGUUACA GUCUGAUG ACA C CAGGCAGCACGGCGACCG C^ U AUU C - UGUGUAGAC 120 110 100 90 80 70