10 20 30 40 50 AGGGCCCCAGGUGACAUA-- G A U -| C AGUGAUGG CAGCAU GUGUG GG GGCCGUAC CU AUGCAG \ GUCGUG CACAC CC CCGGCGUG GA UACGUC C AUAAAGGCUGGUCUCUCUGG A C U U^ - GUAUAAGG . 110 100 90 80 70