10 20 30 40 50 UCACUUAUAGUCUUAAA-----| AGCAAA C AC U U UUGGA AG GUCAGUGGC AUGCAU AACU A GAUCU UC CAGUCAUUG UACGUG UUGA U CUUGCAUGGAGGUGACGCCGAA^ AAC--- U CA - G . 100 90 80 70 60