Protein Interaction Networks are Fragile against Random Attacks and Robust against Malicious Attacks

Details Protein Interaction Networks are Fragile against Random Attacks and Robust against Malicious Attacks Protein Interaction Networks are Fragile against Random Attacks and Robust against Malicious Attacks

2010-10-18

arxiv.org/abs/1010.3531v1

Physics

Computational Physics

5 pages, 4 figures

Scientific paper

The capacity to resist attacks from the environment is crucial to the survival of all organisms. We quantitatively analyze the susceptibility of protein interaction networks of numerous organisms to random and malicious attacks. We find for all organisms studied that random rewiring improves protein network robustness, so that actual networks are more fragile than rewired surrogates. This unexpected fragility contrasts with the behavior of networks such as the Internet, whose robustness decreases with random rewiring. We trace this surprising effect to the modular structure of protein networks.

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