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Book Chapter

The role of GW182 proteins in miRNA-mediated gene silencing

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Braun,  JE
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Huntzinger,  E
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Izaurralde,  E
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Citation

Braun, J., Huntzinger, E., & Izaurralde, E. (2013). The role of GW182 proteins in miRNA-mediated gene silencing. In Advances in Experimental Medicine and Biology. New York: Plenum Press.


Cite as: https://hdl.handle.net/21.11116/0000-000A-AEA4-9
Abstract
GW182 family proteins are essential for microRNA-mediated gene silencing in animal cells. They are recruited to miRNA targets through direct interactions with Argonaute proteins and promote target silencing. They do so by repressing translation and enhancing mRNA turnover. Although the precise mechanism of action of GW182 proteins is not fully understood, these proteins have been shown to interact with the cytoplasmic poly(A)-binding protein (PABP) and with the PAN2-PAN3 and CCR4-NOT deadenylase complexes. These findings suggest that GW182 proteins function as scaffold proteins for the assembly of the multiprotein complex that silences miRNA targets.