1. Department of Chemistry, University of Wisconsin–Madison , Madison, WI 53705, United States
2. Department of Cell and Regenerative Biology, University of Wisconsin–Madison , Madison, WI 53705, United States
3. Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin–Madison , Madison, WI 53705, United States
4. Department of Biostatistics and Medical Informatics, University of Wisconsin–Madison , Madison, WI 53705, United States
5. University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison , Madison, WI 53705, United States
6. Department of Obstetrics and Gynecology, University of Wisconsin–Madison , Madison, WI 53705, United States
7. Department of Applied Bioinformatics, University of Tübingen , Tübingen 72704, Germany
8. Department of Chemistry and Biochemistry, University of Arizona , Tucson, AZ 85719, United States