The 3′-to-5′ Exoribonuclease Nibbler Shapes the 3′ Ends of MicroRNAs Bound to Drosophila Argonaute1

MicroRNAs (miRNAs) are ∼22 nucleotide (nt) small RNAs that control development, physiology, and pathology in animals and plants. Production of miRNAs involves the sequential processing of primary hairpin-containing RNA polymerase II transcripts by the RNase III enzymes Drosha in the nucleus and Dice...

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