1. From the Departments of Cell Biology and
2. the Graduate Program in Molecular Cellular and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Massachusetts; and
3. the Institute for Oral and Musculoskeletal Biology, Center for Biochemistry and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.
4. From the Departments of Cell Biology and 4Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, New York; the 2Graduate Program in Molecular Cellular and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tuf