10 20 30 40 50 60 GCGUUGAGAUUUGUUUUGC--| U CUU UG C U CAGUGAC GGAUGGUG GA GGCAC G GGAAU AUCAC G CCUACCAC CU CCGUG C CCUUG UAGUG C CUUCUACUUCCUUCUGUCCCU^ U ACU GU C - CUAAGAA 120 110 100 90 80 70