10 20 30 40 50 UCAGACCUGAGUGCCGU- --| GA AA A G UGGUUAA GGG GGAGAGGG AAGACGGGAG GAG AG GAG \ CCC CCUCUCUU UUCUGCCCUC CUC UC CUC U CAACUCUGUCCCUCCUAA GU^ G- CC C A CUCAGCG . 110 100 90 80 70