10 20 30 40 50 ACAGACCCGAGGACACC- CU -| C U U U GGACU UCCA CC GUCUA CCAGUGU UAGACUA CUGU CA \ GGGU GG CGGAU GGUUACA GUCUGAU GACA GU C GCCGCCGCGUCCCAGAUU CG U^ U C - U UAACC . 110 100 90 80 70