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