1. Department of Biomolecular Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
2. National Center for Quantitative Biology of Complex Systems, Madison, Wisconsin 53706, United States
3. Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
4. Morgridge Institute for Research, Madison, Wisconsin 53715, United States
5. Thermo Fisher Scientific, San Jose, California 95134, United States