10 20 30 40 50 NNNNNNNNNNNNNNNNNN--| UU U CG G A GGAU GGAG GAGGACUGGG CUUUG GGC AG UGA G CCUU CUCUUGACCC GAAAC CCG UC ACU U CUCUCCCCGCGUCCAGAAAC^ GG U AU G A UAAC 110 100 90 80 70 60