How did organismal complexity evolve at a cellular level, and how does a genome encode it? The answer might lie in differences, not in the number of genes an organism has, but rather in the regulation of gene expression

Pathogens have many ways of subverting their hosts' molecular machinery. A striking example of such a ploy comes to light from investigations of the species of bacterium that causes listeriosis

Polymers of misfolded proteins underlie many diseases, including major neurodegenerative disorders. Structural data on how such aggregates of serpin proteins form answer several outstanding questions