Abstract:Small-RNA-mediated gene regulation is a repeated topic in biology. Animal germ cells are characterized by an interesting small RNA mediated gene silencing mechanism known as the PIWI pathway. PIWIinteracting RNAs (piRNAs) are endogenous small noncoding RNAs that act as guardians of the genome, protecting it from invasive transposable elements in the germline. piRNAs are 25 to 33 nt in length, depending on the PIWI protein that they bind to. piRNAs derive from distinct transposons that are referred to as piRNA … Show more
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