Abstract
Biological networks can be broken down into modules, groups of interacting molecules. To uncover these functional modules and study their evolution, our research groups are developing graph-theory based strategies for the analysis of gene expression data. We are looking for groups of completely connected subgraphs (e.g., cliques) in co-expression networks in which corresponding members (genes) encode proteins with the same combination of protein domains. The common pattern shown by a group of such cliques is a “network motif” that may be reused multiple times within organisms. We have developed algorithms for constructing gene co-expression networks labeled with corresponding protein sequence domain combinations, and then detected recurring network motifs with similar protein domain memberships within these labeled networks. The statistical significance of detected network motifs is evaluated by comparing results with those from randomized networks. Also the biological relevance of network motifs is evaluated for shared Gene Ontology annotations on biological processes. We applied our approach to the malaria transcriptome and found many network motifs with three, four, or five members. Many predicted network motifs were further supported by their existence in yeast protein interaction networks. These results illustrate a new strategy for studying the modularity of biological networks by integrating different types of data and cross-species comparisons. A full description of results is available at http://mouse.ornl.gov/~xpv/camda04/.
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References
Bader, G.D. and Hogue, C.W., Analyzing yeast protein-protein interaction data obtained from different sources, Nat. Biotechnol., 20(10), 991–997.
Bhan, A., Galas, D.J., and Dewey, T.G., A duplication growth model of gene expression networks, Bioinformatics, 18(11), 1486–1493.
Bozdech, Z., Llinas, M., Pulliam, B.L., Wong, E.D., Zhu, J., and DeRisi, J.L., The transcriptome of the intraerythrocytic developmental cycle of Plasmodium falciparum, PLoS Biol., 1(1), E5.
Chang, L. and Karin, M., Mammalian MAP kinase signalling cascades, Nature, 410(6824), 37–40.
Eisenhaber, F., Wechselberger, C., and Kreil, G., The Brix domain protein family — a key to the ribosomal biogenesis pathway? Trends in Biochemical Sciences, 26(6), 345–347.
Langston, M., Lin, L., Peng, X., Baldwin, N., Symons, C., Zhang, B., and Snoddy, J., A combinatorial approach to the analysis of differential gene expression data: The use of graph algorithms for disease prediction and screening, in: Methods of Microarray Data Analysis IV, Springer-Verlag, New York.
Lee, H.K., Hsu, A.K., Sajdak, J., Qin, J., and Pavlidis, P., Coexpression analysis of human genes across many microarray data sets, Genome Research, 14(6), 1085–1094.
Milo, R., Shen-Orr, S., Itzkovitz, S., Kashtan, N., Chklovskii, D., and Alon, U., Network motifs: Simple building blocks of complex networks, Science, 298(5594), 824–827.
Neer, E.J., Schmidt, C.J., Nambudripad, R., and Smith, T.F., The ancient regulatory-protein family of WD-repeat proteins, Nature, 371(6495), 297–300.
Pawson, T. and Nash, P., Assembly of cell regulatory systems through protein interaction domains, Science, 300(5618), 445–452.
Shen-Orr, S.S., Milo, R., Mangan, S., and Alon, U., Network motifs in the transcriptional regulation network of Escherichia coli, Nature Genetics, 31(1), 64–68.
von Mering, C., Jensen, L.J., Snel, B., Hooper, S.D., Krupp, M., Foglierini, M., Jouffre, N., Huynen, M.A., and Bork, P., STRING: Known and predicted protein-protein associations, integrated and transferred across organisms, Nucleic Acids Res., 33, Database Issue, D433-7.
Wood, Z.A., Schroder, E., Robin Harris, J., and Poole, L.B., Structure, mechanism and regulation of peroxiredoxins, Trends Biochem. Sci., 28(1), 32–40.
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Peng, X., Langston, M.A., Saxton, A.M., Baldwin, N.E., Snoddy, J.R. (2007). Detecting Network Motifs in Gene Co-expression Networks Through Integration of Protein Domain Information. In: McConnell, P., Lin, S.M., Hurban, P. (eds) Methods of Microarray Data Analysis V. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-34569-7_7
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DOI: https://doi.org/10.1007/978-0-387-34569-7_7
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