| Chapter title |
Mass Spectrometry Analysis of Spatial Protein Networks by Colocalization Analysis (COLA)
|
|---|---|
| Chapter number | 22 |
| Book title |
Kinase Signaling Networks
|
| Published in |
Methods in molecular biology, July 2017
|
| DOI | 10.1007/978-1-4939-7154-1_22 |
| Pubmed ID | |
| Book ISBNs |
978-1-4939-7152-7, 978-1-4939-7154-1
|
| Authors |
Faraz K. Mardakheh |
| Abstract |
A major challenge in systems biology is comprehensive mapping of protein interaction networks. Crucially, such interactions are often dynamic in nature, necessitating methods that can rapidly mine the interactome across varied conditions and treatments to reveal change in the interaction networks. Recently, we described a fast mass spectrometry-based method to reveal functional interactions in mammalian cells on a global scale, by revealing spatial colocalizations between proteins (COLA) (Mardakheh et al., Mol Biosyst 13:92-105, 2017). As protein localization and function are inherently linked, significant colocalization between two proteins is a strong indication for their functional interaction. COLA uses rapid complete subcellular fractionation, coupled with quantitative proteomics to generate a subcellular localization profile for each protein quantified by the mass spectrometer. Robust clustering is then applied to reveal significant similarities in protein localization profiles, indicative of colocalization. |
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|---|---|---|
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|---|---|---|
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