1. Department of Chemistry & Biochemistry, Montana State University, Bozeman, Montana 59717, United States
2. Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
3. Institute of Microbiology, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 4, Zürich 8093, Switzerland
4. Cassia, LLC, 3030 Bunker Hill Street, Ste. 214, San Diego, California 92109, United States
5. Department of Biochemistry, Duke University Medical Center, Durham, North Carolina 27710, United States