Abstract: Translation Block MicroRNAs (miRNAs) are small, noncoding RNA genes that are found in the genomes of most eukaryotes, where they play an important role in the regulation of gene expression. Although whether gene activity is repressed by blocking translation of messenger RNA (mRNA) targets, or by promoting their deadenylation and then degradation, has been open to debate. Bazzini et al. (p. 233 , published online 15 March) and Djuranovic et al. (p. 237 ) looked at early points in the repression reaction in the zebrafish embryo or in Drosophila t...
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Topics: 
Cell biology
Molecular biology