10 20 30 40 50 UUUUAACUAUUGUGACA--| AA CA U AA AU AGUUU UUUC CAGUGA GC GUCACAUG CAGU GACA \ AAAG GUCAUU CG CAGUGUAU GUCA CUGU U AGAAGGAAGAAAUGCCAAU^ AA AC U GG -- CUUAU 110 100 90 80 70