10 20 30 40 50 GGCAGUAAGUGGGUGCCCAG--| U CA CC A GUGCCA GCAG CUGA CUCUUUC UGUUGCACU CU G CGUC GACU GGGAAAG GUAACGUGA GA U CCCGUGCCACGACUCUAGUCGG^ U AC UA C AAUAAG . 110 100 90 80 70 60