alexa Decoding signalling networks by mass spectrometry-based proteomics.


Journal of Clinical & Cellular Immunology

Author(s): Choudhary C, Mann M

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Abstract Signalling networks regulate essentially all of the biology of cells and organisms in normal and disease states. Signalling is often studied using antibody-based techniques such as western blots. Large-scale 'precision proteomics' based on mass spectrometry now enables the system-wide characterization of signalling events at the levels of post-translational modifications, protein-protein interactions and changes in protein expression. This technology delivers accurate and unbiased information about the quantitative changes of thousands of proteins and their modifications in response to any perturbation. Current studies focus on phosphorylation, but acetylation, methylation, glycosylation and ubiquitylation are also becoming amenable to investigation. Large-scale proteomics-based signalling research will fundamentally change our understanding of signalling networks. This article was published in Nat Rev Mol Cell Biol and referenced in Journal of Clinical & Cellular Immunology

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