1. Department
of Chemistry, University of Wisconsin—Madison, Madison 53706, Wisconsin, United States
2. Department of Cell and Regenerative Biology, University of Wisconsin—Madison, Madison 53706, Wisconsin, United States
3. PolyLC Inc., Columbia 21045, Maryland, United States
4. Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States