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This is a visualization of a protein-protein interaction dataset for Plasmodium falciparum, the bacterium responsible for malaria. Scientists use an assay called co-immunoprecipitation confirm that a protein has interacted with another protein. There is no information about the order in which the interactions occur -- only that they've met before. Above, nodes are proteins. If two proteins have interacted with each other there is a spring between them, shown as a line. I've kept track of how many proteins each protein interacts with, called the degree, and sorted this list in descending order, plotting the degree distribution for the top 50. |