10 20 30 40 50 UCCUACAGGGCCGCCUG- --| C - U C CA CUUAGC CC UGC GAUCG C GU UUACCAGACA GUUAGAU \ GG ACG CUAGC G CG AAUGGUCUGU UAAUCUG U AAGUUCCACUUCUGAAAC CU^ - U C U CA UCCUUA . 110 100 90 80 70 60