10 20 30 40 50 60 CCUGUGUCUUUUCUGGG----| GU C UU GUACAGU CAGUC UGCU CUGUAAACAUCC GACUGGAAGCU G GUCGG ACGG GACAUUUGUAGG CUGACUUUCGG C AAGACAAGUCCUCCUGACACC^ -- C -- GAGGACU 120 110 100 90 80 70