About the cover

July 2010 Volume 6 No 7

Lipids are critical chemical components of cells, forming the basis of biological membranes that organize and compartmentalize cellular functions. Lipids are also important mediators of biochemical signaling events, both as components of membranes and as second messengers. This issue contains a collection of articles that discuss our current understanding of the functions of lipids and the methods used to study them at the individual level and within the larger biological systems in which they function. Cover art by Erin Dewalt, based on an image from Raghuveer Parthasarathy of the topology of a supported lipid bilayer containing red and green fluorescently labeled glycoproteins, acquired using fluorescence interference contrast microscopy.