Genomics

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In eukaryotic genetics, the five prime untranslated region (5' UTR) is a particular section of messenger RNA (mRNA). It precedes the translation initiation site of the gene, bounded on the 5' end by the start of transcription and on the 3' end by the start codon (see Figure 1 for a schematic view). In some viruses it may have additional role in enhancing the expression level or increasing the stability of RNA.

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