Neuron, Vol

Peter S. McPherson,* Young-Kee Kim,† Hector Valdivia,† C. Michael Knudson,‡ Hiroaki Takekura,§ Clara Franzini-Armstrong,§ Roberto Coronado,† and Kevin P. Campbell*‡|| *Program in Neuroscience ‡Department of Physiology and Biophysics || Howard Hughes Medical Institute University of Iowa College of Medicine Iowa City, Iowa 52242 †Department of Physiology University of Wisconsin Medical School Madison, Wisconsin 53706 §Department of Biology and Anatomy University of Pennsylvania Philadelphia, Pennsylvania 19104