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Statistical cartography
ID Number
2331
Description
Like a world of its own, this sphere represents all the known chemical reactions in the E. coli bacterium. The colorful circles on the surface symbolize sets of densely interconnected reactions. The lines between the circles show additional connecting reactions. The shapes inside the circles are landmark molecules, like capital cities on a map, that either act as hubs for many groups of reactions, are highly conserved among species, or both. Molecules that connect far-flung reactions on the sphere are much more conserved during evolution than molecules that connect reactions within a single circle. This statistical cartography could reveal insights about other complex systems, such as protein interactions and gene regulation networks.
Featured in the August 16, 2005, issue of Biomedical Beat.
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