Structural investigations of the RNA-binding properties of STAR proteins

STAR (signal transduction and activation of RNA) proteins are a family of RNA-binding proteins that regulate post-transcriptional gene regulation events at various levels, such as pre-mRNA alternative splicing, RNA export, translation and stability. Most of these proteins are regulated by signalling pathways through post-translational modifications, such as phosphorylation and arginine methylation. These proteins share a highly conserved RNA-binding domain, denoted STAR domain. Structural investigations of this STAR domain in complex with RNA have highlighted how a subset of STAR proteins specifically recognizes its RNA targets. The present review focuses on the structural basis of RNA recognition by this family of proteins.

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