1. School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
2. Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
3. Department of Chemistry and the Henry Eyring Center for Cell and Genome Science, University of Utah, Salt Lake City, Utah 84112, United States
4. School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States