Many experimentally identified microRNA-binding sites are ineffective at mediating repression, and an improved quantitative model for predicting the effective sites is as informative as high-throughput experimental approaches.

Selective degradation of mature miRNAs shapes temporal miRNA expression patterns and is important for proper regulation of target genes to support normal development of Drosophila embryos.

Arabidopsis microRNAs and their effector protein ARGONAUTE1 associate with and act on polysomes on the rough endoplasmic reticulum.

AGO protein-interacting exoribonucleases clear RNA induced silencing complex (RISC)-resulting 5' cleavage products in time to recycle RISC and miRNAs.

Coordinated microRNAs activity induced by VEGF represses cell proliferation and favors cell migration at the onset of sprouting angiogenesis in endothelial cells.

Presence of a functional homolog of HYL1 in Nematostella vectensis, a basal animal model, indicates divergent evolution of miRNA biogenesis pathway in plants and animals from an ancestral miRNA system.

The identification of SMA-miR supports the pathogenic role of skeletal muscle in spinal muscular atrophy and, integrated in the SMA-score, may help to improve the phenotypic prediction for patients.

Affinity measurements of microRNA sites representing >1000 different pairing architectures reveal that two binding modes can mediate pairing to the microRNA 3′ region, and that microRNA G and oligo(G/C) residues are most impactful.

miR-125 functions as a potential dietary restriction mimetic by promoting longevity through regulation of fat metabolism.

miR-142 is instrumental for actin homeostasis, and its loss disrupts the cytoskeleton organization and thrombopoiesis of megakaryocytes.