A protein called GW182/TNRC6 acts as a hub to integrate the activities of different protein complexes involved in RNA silencing.
A protein called GW182/TNRC6 acts as a hub to integrate the activities of different protein complexes involved in RNA silencing. To keep their vital functions in balance, many organisms use small snippets of RNA to 'silence' messenger RNAs that code for certain proteins. New research from FMI scientists revealed a molecular hub that integrates the activities of different protein complexes involved in such RNA silencing. The findings provide insights into a key mechanism that helps to coordinate cellular functions. In many plants and animals, small RNAs called miRNAs identify messenger RNAs that must be silenced by two proteins called Argonaute and GW182/TNRC6. Together, the two proteins and the miRNA form something called an RNA-induced silencing complex. Researchers in the Grosshans lab and their collaborators at the University of Freiburg's Medical Center and the Novartis Institutes for BioMedical Research found that, when GW182/TNRC6 doesn't latch onto Argonaute proteins, it hobnobs with other RNA-binding proteins.
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