10 20 30 40 50 60 AACCAAAUUGAUGGUCAAAC--| U U A A UUUAUCA UGUUAAGC UUGAU GUCCA ACGCA UUCUUG A ACGGUUCG AACUA CAGGU UGUGU AAGAAC U UAACCUCCAAUUCAACUAAACC^ U - G C CUCUAAU 120 110 100 90 80 70