Proteomic Profiling of Integrin Adhesion Complex Assembly

  • Adam ByronEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1764)


Cell adhesion to components of the cellular microenvironment via cell-surface adhesion receptors controls many aspects of cell behavior in a range of physiological and pathological processes. Multimolecular complexes of scaffolding and signaling proteins are recruited to the intracellular domains of adhesion receptors such as integrins, and these adhesion complexes tether the cytoskeleton to the plasma membrane and compartmentalize cellular signaling events. Integrin adhesion complexes are highly dynamic, and their assembly is tightly regulated. Comprehensive, unbiased, quantitative analyses of the composition of different adhesion complexes over the course of their formation will enable better understanding of how the dynamics of adhesion protein recruitment influence the functions of adhesion complexes in fundamental cellular processes. Here, a pipeline is detailed integrating biochemical isolation of integrin adhesion complexes during a time course, quantitative proteomic analysis of isolated adhesion complexes, and computational analysis of temporal proteomic data. This approach enables the characterization of adhesion complex composition and dynamics during complex assembly.

Key words

Bioinformatics Cell adhesion Cell signaling Data analysis Hierarchical clustering Integrins Interaction networks Proteomics 



J.A. Askari, J.D. Humphries, M.J. Humphries, and other members of the Humphries Laboratory (University of Manchester) are gratefully acknowledged for the development and optimization of the integrin adhesion complex purification protocol described herein, which was funded by the Wellcome Trust. A.B. is funded by Cancer Research UK (grant C157/A15703 to M.C. Frame, University of Edinburgh).


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Authors and Affiliations

  1. 1.Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUK

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