Laplacian Spectrum and Protein-Protein Interaction Networks

Anirban Banerjee; Jürgen Jost

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arXiv · 0705.3373

Laplacian Spectrum and Protein-Protein Interaction Networks

Anirban Banerjee·Jürgen Jost

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Abstract

From the spectral plot of the (normalized) graph Laplacian, the essential qualitative properties of a network can be simultaneously deduced. Given a class of empirical networks, reconstruction schemes for elucidating the evolutionary dynamics leading to those particular data can then be developed. This method is exemplified for protein-protein interaction networks. Traces of their evolutionary history of duplication and divergence processes are identified. In particular, we can identify typical specific features that robustly distinguish protein-protein interaction networks from other classes of networks, in spite of possible statistical fluctuations of the underlying data.

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Anirban Banerjee, Jürgen Jost. 2007-05-23. Laplacian Spectrum and Protein-Protein Interaction Networks. https://arxiv.org/abs/0705.3373

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