DisseCCTing phospholipid function in lipid droplet dynamics

Phospholipids provide an amphipathic barrier between lipid droplets and the cytoplasm of cells. In this issue of Cell Metabolism, Krahmer and colleagues (2011) define a role for phosphatidylcholine in preventing lipid droplet coalescence and show that the rate-limiting enzyme in phosphatidylcholine synthesis is activated through binding to lipid droplets.