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Introduction to GRNs

Introduction to GRNs
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Author(s): Ugo Ala (Università di Torino, Italy)and Christian Damasco (Università di Torino, Italy)
Copyright: 2010
Pages: 29
Source title: Handbook of Research on Computational Methodologies in Gene Regulatory Networks
Source Author(s)/Editor(s): Sanjoy Das (Kansas State University, USA), Doina Caragea (Kansas State University, USA), Stephen Welch (Kansas State University, USA)and William H. Hsu (Kansas State University, USA)
DOI: 10.4018/978-1-60566-685-3.ch002

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Abstract

The post-genomic era shifted the main biological focus from ‘single-gene’ to ‘genome-wide’ approaches. High throughput data available from new technologies allowed to get inside main features of gene expression and its regulation and, at the same time, to discover a more complex level of organization. Analysis of this complexity demonstrated the existence of nonrandom and well-defined structures that determine a network of interactions. In the first part of the chapter, we present a functional introduction to mechanisms involved in genes expression regulation, an overview of network theory, and main technologies developed in recent years to analyze biological processes are discussed. In the second part, we review genes regulatory networks and their importance in system biology.

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