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Trends Biochem Sci. 2010 Apr;35(4):220-7. doi: 10.1016/j.tibs.2009.12.001. Epub 2010 Jan 7.

Regulatory crosstalk of the metabolic network.

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Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195 Berlin, Germany.


The metabolic network has a modular architecture, is robust to perturbations, and responds to biological stimuli and environmental conditions. Through monitoring by metabolite responsive macromolecules, metabolic pathways interact with the transcriptome and proteome. Whereas pathway interconnecting cofactors and substrates report on the overall state of the network, specialised intermediates measure the activity of individual functional units. Transitions in the network affect many of these regulatory metabolites, facilitating the parallel regulation of the timing and control of diverse biological processes. The metabolic network controls its own balance, chromatin structure and the biosynthesis of molecular cofactors; moreover, metabolic shifts are crucial in the response to oxidative stress and play a regulatory role in cancer.

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