10 20 30 40 50 60 CUGACAGCUCUGUGUGUA--| C AC UGAACA CCUGCC AGAGUACAUACUUCUUUAUGU CCAUA U GGACGG UUUUAUGUAUGAAGAAAUGUA GGUAU A GAGAAUGACCAUCAAGGUAC^ U A- CGUAAC . 110 100 90 80 70