10 20 30 40 50 UUACAGAAGAGAUCCGC- UGUUGC-| A CG C A GUCAU GCC CACA ACC UAGAU CGA CUUGUG \ CGG GUGU UGG AUCUA GUU GAACAC A UGUGGUGAAACACGUGAA UCUGUCU^ A AU U C ACCUU 110 100 90 80 70 60