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