Global topological features of cancer proteins in the human interactome
Pall F. Jonsson,Paul A. Bates +1 more
TLDR
It is shown that cancer proteins contain a high ratio of highly promiscuous structural domains, i.e., domains with a high propensity for mediating protein interactions, reflecting the central roles of proteins, whose mutations lead to cancer.Abstract:
Motivation: The study of interactomes, or networks of protein-protein interactions, is increasingly providing valuable information on biological systems. Here we report a study of cancer proteins in an extensive human protein-protein interaction network constructed by computational methods.
Results: We show that human proteins translated from known cancer genes exhibit a network topology that is different from that of proteins not documented as being mutated in cancer. In particular, cancer proteins show an increase in the number of proteins they interact with. They also appear to participate in central hubs rather than peripheral ones, mirroring their greater centrality and participation in networks that form the backbone of the proteome. Moreover, we show that cancer proteins contain a high ratio of highly promiscuous structural domains, i.e., domains with a high propensity for mediating protein interactions. These observations indicate an underlying evolutionary distinction between the two groups of proteins, reflecting the central roles of proteins, whose mutations lead to cancer.
Contact: paul.bates@cancer.org.uk
Supplementary information: The interactome data are available though the PIP (Potential Interactions of Proteins) web server at http://bmm.cancerresearchuk.org/servers/pip. Further additional material is available at http://bmm.cancerresearchuk.org/servers/pip/bioinformatics/read more
Citations
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Network Medicine: A Network-Based Approach to Human Disease
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The human disease network
Kwang-Il Goh,Michael E. Cusick,David Valle,Barton Childs,Marc Vidal,Albert-László Barabási,Albert-László Barabási +6 more
TL;DR: This paper found that essential human genes are likely to encode hub proteins and are expressed widely in most tissues, while the vast majority of disease genes are non-essential and show no tendency to encoding hub proteins, and their expression pattern indicates that they are localized in the functional periphery of the network.
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human disease network
TL;DR: It is found that essential human genes are likely to encode hub proteins and are expressed widely in most tissues, suggesting that disease genes also would play a central role in the human interactome, and that diseases caused by somatic mutations should not be peripheral.
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Interactome Networks and Human Disease
Marc Vidal,Michael E. Cusick,Albert-László Barabási,Albert-László Barabási,Albert-László Barabási +4 more
TL;DR: In this paper, the authors discuss different types of interactome networks and the insights that can come from analyzing them, including how they can be mapped and integrated with each other, what global properties are starting to emerge from interactome network models, and how these properties may relate to human disease.
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Interactome networks and human disease
TL;DR: Why interactome networks are important to consider in biology, how they can be mapped and integrated with each other, what global properties are starting to emerge from interactome network models, and how these properties may relate to human disease are detailed.
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