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Caltech researchers help unlock the secrets of gene regulatory networks
Date:2/3/2009

PASADENA, Calif.-- A quartet of studies by researchers at the California Institute of Technology (Caltech) highlight a special feature on gene regulatory networks recently published in the Proceedings of the National Academy of Sciences (PNAS).

The collection of papers, "Gene Networks in Development and Evolution Special Feature, Sackler Colloquium," was coedited by Caltech's Eric H. Davidson, the Norman Chandler Professor of Cell Biology. His coeditor was Michael Levine, professor of genetics, genomics and development at the University of California, Berkeley.

"The control system that determines how development of an animal occurs in each species is encoded in the genome, and the physical location of the sequences where this code is resident is being revealed in a new area of systems biology--the study of gene regulatory networks," says Davidson. Gene regulatory networks are the complex networks of gene interactions that direct the development of any given species.

The papers in the collection focus on the gene regulatory networks of a variety of organisms, including fruit flies, soil-dwelling nematodes, sea urchins, lampreys, and mice.

"These networks lie at the heart of the regulatory apparatus, and they consist of genes that encode proteins that regulate other genes, and the DNA sequences which control when and where they are expressed," says Davidson, who authored a paper in the special feature about a gene regulatory network found in sea urchin embryos. He and Levine also coauthored a perspective in the same issue of the journal on the properties of gene regulatory networks.

In one paper, Ellen V. Rothenberg, one of the two Albert Billings Ruddock Professors of Biology at Caltech, examines, in mice, the intricate developmental pathway that causes blood stem cells to differentiate into T cells, a varied class of immune system cells that help the body fight off infection.

The paper, Rothe
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Contact: Kathy Svitil
ksvitil@caltech.edu
626-395-8022
California Institute of Technology
Source:Eurekalert

Page: 1 2

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