1. Molecular Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
2. Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
3. Programs in Biochemistry, Cell, and Molecular Biology, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065
4. Functional Proteomics Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Proteos, Singapore 138673, Singapore
5. Simons Electron Microscopy Center, New York Structural Biology Center, New York, NY 10027