| Chapter title |
An efficient fluorescent protein-based multifunctional affinity purification approach in Mammalian cells.
|
|---|---|
| Chapter number | 14 |
| Book title |
Protein Affinity Tags
|
| Published in |
Methods in molecular biology, June 2014
|
| DOI | 10.1007/978-1-4939-1034-2_14 |
| Pubmed ID | |
| Book ISBNs |
978-1-4939-1033-5, 978-1-4939-1034-2
|
| Authors |
Ma H, McLean JR, Gould KL, McCollum D, Hanhui Ma, Janel R. McLean, Kathleen L. Gould, Dannel McCollum |
| Abstract |
Knowledge of an individual protein's modifications, binding partners, and localization is essential for understanding complex biological networks. We recently described a fluorescent protein-based (mVenus) multifunctional affinity purification (MAP) tag that can be used both to purify a given protein and determine its localization (Ma et al., Mol Cell Proteomics 11:501-511, 2012). MAP purified protein complexes can be further analyzed to identify binding partners and posttranslational modifications by LC-MS/MS. The MAP approach offers rapid FACS-selection of stable clonal cell lines based on the expression level/fluorescence of the MAP-protein fusion. The MAP tag is highly efficient and shows little variability between proteins. Here we describe the general MAP purification method in detail, and show how it can be applied to a specific protein using the human Cdc14B phosphatase as an example. |
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