10 20 30 40 50 AUCAGAGAUGUCUCUGGGC---| A UA- U UA AUCGCUG AGA UUGCAUAAGCUGGAA UUGG UCU GC \ UCU GACGUAUUCGGCCUU AAUC AGA CG U GAGUUGCAAGGGUCGGCUGCCC^ - CUC U C- UGAAAGU . 110 100 90 80 70