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Bacillus anthracis is a Gram-positive bacillus that is the causative agent of anthrax. The virulence of the bacillus is partly due to the production of a tripartite virulence factor: protective antigen (PA), lethal factor (LF) and edema factor (EF). Recognition of the bacillus and its toxins by the innate immune system is likely to play a key role following(More)
Here we present a minimal mathematical model for the sphingomyelin synthase 1 (SMS1) driven conversion of ceramide to sphingomyelin based on chemical reaction kinetics. We demonstrate via mathematical analysis that this model is not able to qualitatively reproduce experimental measurements on lipid compositions after altering SMS1 activity. We prove that a(More)
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