10 20 30 40 50 60 CCCGGAUGUCCGGCUCU- G- U -| CCU ACAUC GGU UCUCCUGGCAACAA AUC CUGGUGCUG GAGU \ CCA AGGGGGCCGUUGUU UAG GACUACGAC CUCA U CCACAAACAUCUCACUCC AA U U^ --- GACAC . 110 100 90 80 70