10 20 30 40 50 60 GACGUGCAGAACGCUGG-----| UC CU - UU UA GUUCCAGU CAGU CAAGCU GAGAACUG GU UCA GACUG U GUCA GUUCGA CUCUUGAC CA AGU CUGAC C AGGAUUCAAUACUUCAGUCUAU^ -- U- U U- GC UCGAAUGU 120 110 100 90 80 70