10 20 30 40 50 GUGACACCCAAAUAUGU--| CG U C GGGUG GAGUGAAAAGUUC UCAACCA CCAG UGUUUG A UUCAUUUUUUAAG AGUUGGU GGUC ACAAAC U AGGCUUUGUAGGUCUCUGA^ AG U U AAACA 110 100 90 80 70 60