摘要：

Protein synthesis initiation on prokaryotic mRNAs involves base-pairing of a site preceding the initiation codon with the 3′ terminal sequence of 16 S rRNA. It has been suggested that a similar situation may prevail in eukaryotic mRNAs. This suggestion is not baaed on experiments, but on observation of complementarities between mRNA 5′ noncoding sequences and a conserved sequence near the 18 S...

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