1. Department of Biochemistry, New York University School of Medicine, New York, NY 10016, USA.
2. Department of Microbiology, Columbia University Medical Center, New York, NY 10032, USA.
3. BioMaPS Institute for Quantitative Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
4. Comparative Proteomics Center, Department of Biological Sciences, Columbia University, New York, NY 10027, USA.
5. Department of Biochemistry and Molecular Biophysics, Columbia University Medical Center, New York, NY 10032, USA.