10 20 30 40 50 CGCUGGAAAGCCUGUGU----| U UU C GUGUC GUAUCC CAGCU GAGAACUGAAUU CAUGGGUU A UAUAGG GUCGA UUCUUGACUUGA GUGUCCAG G GGACUCAGGUGCUACUGUCUC^ - C- A ACUGC 110 100 90 80 70 60