Chapter title |
In Vivo Protein Cross-Linking
|
---|---|
Chapter number | 26 |
Book title |
Protein-Protein Interactions
|
Published in |
Methods in molecular biology, January 2015
|
DOI | 10.1007/978-1-4939-2425-7_26 |
Pubmed ID | |
Book ISBNs |
978-1-4939-2424-0, 978-1-4939-2425-7
|
Authors |
Fabrice Agou, Michel Véron, Agou, Fabrice, Véron, Michel |
Abstract |
In the cell, homo- and hetero-associations of polypeptide chains evolve and take place within subcellular compartments that are crowded with many other cellular macromolecules. In vivo chemical cross-linking of proteins is a powerful method to examine changes in protein oligomerization and protein-protein interactions upon cellular events such as signal transduction. This chapter is intended to provide a guide for the selection of cell membrane permeable cross-linkers, the optimization of in vivo cross-linking conditions, and the identification of specific cross-links in a cellular context where the frequency of random collisions is high. By combining the chemoselectivity of the homo-bifunctional cross-linker and the length of its spacer arm with knowledge on the protein structure, we show that selective cross-links can be introduced specifically on either the dimer or the hexamer form of the same polypeptide in vitro as well as in vivo, using the human type B nucleoside diphosphate kinase as a protein model. |
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