Correction

In the article, “UNC-11, a Caenorhabditis elegans AP180 Homologue, Regulates the Size and Protein Composition of Synaptic Vesicles,” by M.L. Nonet et al. (Mol. Biol. Cell [1999], 10, 2343–2360), the affiliation for Aixa Alfonso should be Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois 60607.