Small RNAs derived from the 5′ end of tRNAs can inhibit protein translation in human cells

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Journal Article
RNA Biology, 2013, 10 (4), pp. 553 - 563
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Recently, it has been shown that tRNA molecules can be processed into small RNAs that are derived from both the 5′ and 3′ termini. To date, the function of these tRNA fragments (tRFs) derived from the 5′ end of tRNAs has not been investigated in depth. We present evidence that conserved residues in tRNAs, present in all 5′ tRFs, can inhibit the process of protein translation without the need for complementary target sites in the mRNA. These results implicate 5′ tRFs in a new mechanism of gene regulation by small RNAs in human cells. © 2013 Landes Bioscience.
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