neuroscience. For the article “Conformation-dependent hydrophobic photolabeling of the nicotinic receptor: Electrophysiology-coordinated photochemistry and mass spectrometry,” by John F. Leite, Michael P. Blanton, Mona Shahgholi, Dennis A. Dougherty, and Henry A. Lester, which appeared in issue 22, October 28, 2003, of Proc. Natl. Acad. Sci. USA (100, 13054-13059; first published October 20, 2003; 10.1073/pnas.2133028100), the authors note that the following funding acknowledgement was omitted from the article: “This work was supported by grants from the National Institutes of Health (NS11756, NS34407, NS35786, and NRSA) to J.F.L.”