10 20 30 40 50 60 AAACUCCUCAGAGACGU--| U CUCA GU CUGUUAC GCC GAGAGG GGGCUUAGCU AUUGUGAGCA U CGG CUCUCC CUUGAAUCGG UGACACUUGU C ACCGGUUUCACUUCCCACG^ U CCGC -- CCACGCU 120 110 100 90 80 70