Evolution of the Protein Interaction Network of Budding Yeast: Role of the Protein Family Compatibility Constraint

Details Evolution of the Protein Interaction Network of Budding Yeast: Role of the Protein Family Compatibility Constraint Evolution of the Protein Interaction Network of Budding Yeast: Role of the Protein Family Compatibility Constraint

2003-12-08

arxiv.org/abs/q-bio/0312009v3

J. Korean Phys. Soc. 46, 551 (2005)

Biology

Quantitative Biology

Molecular Networks

5 pages, 5 figures, 1 table. Title changed. Final version published in JKPS

Scientific paper

Understanding of how protein interaction networks (PIN) of living organisms have evolved or are organized can be the first stepping stone in unveiling how life works on a fundamental ground. Here we introduce a hybrid network model composed of the yeast PIN and the protein family interaction network. The essential ingredient of the model includes the protein family identity and its robustness under evolution, as well as the three previously proposed ones: gene duplication, divergence, and mutation. We investigate diverse structural properties of our model with parameter values relevant to yeast, finding that the model successfully reproduces the empirical data.

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