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Mol Biol Int. 2011;2011:137459. doi: 10.4061/2011/137459. Epub 2011 Feb 24.

Protein methylation and stress granules: posttranslational remodeler or innocent bystander?

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1
Division of Hematology and Medical Oncology, Department of Medicine, Weill Medical College of Cornell University, New York, NY 1065, USA.

Abstract

Stress granules contain a large number of post-translationally modified proteins, and studies have shown that these modifications serve as recruitment tags for specific proteins and even control the assembly and disassembly of the granules themselves. Work originating from our laboratory has focused on the role protein methylation plays in stress granule composition and function. We have demonstrated that both asymmetrically and symmetrically dimethylated proteins are core constituents of stress granules, and we have endeavored to understand when and how this occurs. Here we seek to integrate this data into a framework consisting of the currently known post-translational modifications affecting stress granules to produce a model of stress granule dynamics that, in turn, may serve as a benchmark for understanding and predicting how post-translational modifications regulate other granule types.

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