Computational methods for analyzing dynamic regulatory networks.
Regulatory and other networks in the cell change in a highly dynamic way over time and in response to internal and external stimuli. While several different types of high-throughput experimental procedures are available to study systems in the cell, most only measure static properties of such networks. Information derived from sequence data is inherently static, and most interaction data sets are measured in a static way as well. In this chapter we discuss one of the few abundant sources for temporal information, time series expression data. We provide an overview of the methods suggested for clustering this type of data to identify functionally related genes. We also discuss methods for inferring causality and interactions using lagged correlations and regression analysis. Finally, we present methods for combining time series expression data with static data to reconstruct dynamic regulatory networks. We point to software tools implementing the methods discussed in this chapter. As more temporal measurements become available, the importance of analyzing such data and of combining it with other types of data will greatly increase.
Gitter
Anthony
A
Computer Science Department, Carnegie Mellon University, Pittsburgh, PA, USA. agitter@cs.cmu.edu
Lu
Yong
Y
Bar-Joseph
Ziv
Z
D000818:Animals; D016000:Cluster Analysis; D019295:Computational Biology / Q000379:methods*; D053263:Gene Regulatory Networks; D006801:Humans; D012984:Software; D013997:Time Factors
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