10 20 30 40 50 GGUUCCCUCUGCUGUAUCGAC- -| G A GA A GUGCAU UUCC CCCA AG CUGGG GGGUG AAUGCA G GGGG GGGU UC GGCCC CCCAC UUAUGU C CUGUUUUACCGGCUGUAUGACC U^ G C UG G CUUCCU . 110 100 90 80 70 60