10 20 30 40 50 CGGGACGAAGUUUCCUU--| U C U CG G A GAAGUU GGGGGUC GGG CUGGG CUUUG GGC AG UGA U UCCCCGG UCC GACCC GAAAC CCG UC ACU C CGUUUUGUCGGCGUUUCAG^ C U U AU G A UCCGUC . 110 100 90 80 70 60