From transcription to translation: new insights in the structure and function of Argonaute protein

Argonaute proteins play a central role in gene silencing pathways mediated by small RNA molecules. The ancestral function of small RNA-dependent silencing is related to genome protection against parasitic nucleic acids, such as transposons and viruses. However, new classes of small RNAs are continuo...

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Bibliographic Details
Main Authors: Giorgi Corinna, Cogoni Carlo, Catalanotto Caterina
Format: Article
Language:English
Published: De Gruyter 2012-12-01
Series:Biomolecular Concepts
Subjects:
Online Access:https://doi.org/10.1515/bmc-2012-0024
Description
Summary:Argonaute proteins play a central role in gene silencing pathways mediated by small RNA molecules. The ancestral function of small RNA-dependent silencing is related to genome protection against parasitic nucleic acids, such as transposons and viruses. However, new classes of small RNAs are continuously being uncovered in all higher eukaryotes in which they play important functions in processes ranging from embryonic development to differentiation to cell proliferation and metabolism. Small RNAs have variegated biogenesis pathways and accomplish distinct functions. Nevertheless, it appears that all small RNAs work merely as guides in recognizing the target RNAs invariably relying on the interaction with Argonaute proteins and associated factors for their biological function. Here, we discuss recent findings on the structure and regulation of mammalian Argonaute proteins and overview the various roles that these versatile proteins play in regulating gene expression.
ISSN:1868-5021
1868-503X