Chapter title |
Targeted Analysis of Phosphotyrosine Signaling by Multiple Reaction Monitoring Mass Spectrometry
|
---|---|
Chapter number | 17 |
Book title |
Kinase Signaling Networks
|
Published in |
Methods in molecular biology, July 2017
|
DOI | 10.1007/978-1-4939-7154-1_17 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7152-7, 978-1-4939-7154-1
|
Authors |
Leo S. Payne, Paul H. Huang, Payne, Leo S., Huang, Paul H. |
Abstract |
Phosphoproteomics is an important tool for the unbiased investigation of signaling network activation and has particular application to unraveling aberrant signaling driving cancer progression. However, validating the behavior of specific phosphosites across multiple experimental conditions remains challenging, due to limitations inherent in discovery-based proteomic workflows and the limited availability of high-quality antibodies required for alternative, immunoaffinity-based methods. Targeted phosphoproteomics enables specific phosphosites to be quantified reproducibly across multiple experimental conditions. Importantly, targeted phosphoproteomic assays can be designed rapidly on the basis of data acquired in discovery proteomic experiments and circumvent the requirement of immunoaffinity techniques for reliable antibodies raised to specific, potentially poorly immunogenic phosphopeptides. In the following protocol, we present a method for the relative quantification of phosphosites across multiple experimental conditions and/or technical and biological replicates. |
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