10 20 30 40 50 AAACGGUUGAGUUCACUCU--| C CA C A AUUUUU GGG UG UCCACAGGCACAGC GGUUUG GC A UCC AC GGGUGUCCGUGUUG CCAAAC CG C CUUCUGAGGUCCUCGUCUGUU^ A AC A - UUAAGU 110 100 90 80 70 60