The authors are in the Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. acraig@pcg.wustl.edu or jeff@thalamus.wustl.edu
Studies of populations of receptor proteins suggest that their number and location are highly regulated. Single-particle tracking of glycine receptors now reveals the direct movement of receptors between different clusters of the anchoring protein gephyrin.
