Using affinity purification coupled with stable isotope labeling by amino acids in cell culture quantitative mass spectrometry to identify novel interactors/substrates of protein arginine methyltransferases
| Autor: | Kohila Mahadevan, Julie Bourassa, Laura Trinkle-Mulcahy, Alan Morettin, Jocelyn Côté |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Proteomics
Protein-Arginine N-Methyltransferases Methyltransferase Arginine Gene Expression Mass spectrometry Chromatography Affinity Mass Spectrometry General Biochemistry Genetics and Molecular Biology Histones 03 medical and health sciences Affinity chromatography Stable isotope labeling by amino acids in cell culture Humans Amino Acids Enzyme Inhibitors Molecular Biology Gene 030304 developmental biology chemistry.chemical_classification 0303 health sciences Chemistry 030302 biochemistry & molecular biology Nuclear Proteins Methylation Recombinant Proteins Amino acid Biochemistry Isotope Labeling MCF-7 Cells Protein Binding |
| Zdroj: | Methods. 175:44-52 |
| ISSN: | 1046-2023 |
| DOI: | 10.1016/j.ymeth.2019.11.015 |
| Popis: | The protein arginine methyltransferase family (PRMT) is known as being the catalytic driving force for arginine methylation. This specific type of post translational modification is extensively used in biological processes, and therefore is highly relevant in the pathology of a profusion of diseases. Since altered PRMT expression or deregulation has been shown to contribute to a vast range of those diseases including cancer, their study is of great interest. Although an increasing number of substrates are being discovered for each PRMT, large scale proteomic methods can be used to identify novel interactors/substrates, further elucidating the role that PRMTs perform in physiological or disease states. Here, we describe the use of affinity purification (AP) coupled with stable isotope labeling with amino acids in cell culture (SILAC) quantitative mass spectrometry (MS) to identify protein interactors and substrates of PRMTs. We also explore the possibility of exploiting the fact most PRMTs display lower dissociation rates with their hypomethylated substrates as a strategy to increase the proportion of substrates identified in AP/MS studies. |
| Databáze: | OpenAIRE |
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