Stanford University - Department of Biology, Stanford University - Department of Biology, University of California, Berkeley - Department of Nutritional Sciences and Toxicology, Stanford University - Department of Biology, Stanford University - Department of Biology, University of California, Berkeley - Department of Chemistry, Washington University in St. Louis - Department of Chemistry, University of Washington - Department of Medicine, University of California, Berkeley - Department of Nutritional Sciences and Toxicology, University of California, Berkeley - Department of Nutritional Sciences and Toxicology and Stanford University - Department of Biology