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PRMT t cell differentiation

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https://www.readbyqxmd.com/read/27601476/arginine-demethylation-of-g3bp1-promotes-stress-granule-assembly
#1
Wei-Chih Tsai, Sitaram Gayatri, Lucas C Reineke, Gianluca Sbardella, Mark T Bedford, Richard E Lloyd
Stress granules (SGs) are cytoplasmic condensates of stalled messenger ribonucleoprotein complexes (mRNPs) that form when eukaryotic cells encounter environmental stress. RNA-binding proteins are enriched for arginine methylation and facilitate SG assembly through interactions involving regions of low amino acid complexity. How methylation of specific RNA-binding proteins regulates RNA granule assembly has not been characterized. Here, we examined the potent SG-nucleating protein Ras-GAP SH3-binding protein 1 (G3BP1), and found that G3BP1 is differentially methylated on specific arginine residues by protein arginine methyltransferase (PRMT) 1 and PRMT5 in its RGG domain...
October 21, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/23516374/functional-genomic-analysis-of-the-let-7-regulatory-network-in-caenorhabditis-elegans
#2
Shaun E Hunter, Emily F Finnegan, Dimitrios G Zisoulis, Michael T Lovci, Katya V Melnik-Martinez, Gene W Yeo, Amy E Pasquinelli
The let-7 microRNA (miRNA) regulates cellular differentiation across many animal species. Loss of let-7 activity causes abnormal development in Caenorhabditis elegans and unchecked cellular proliferation in human cells, which contributes to tumorigenesis. These defects are due to improper expression of protein-coding genes normally under let-7 regulation. While some direct targets of let-7 have been identified, the genome-wide effect of let-7 insufficiency in a developing animal has not been fully investigated...
2013: PLoS Genetics
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