1. Department of Biochemistry, Virginia Tech, 201 Engel Hall (0308) 340 West Campus Drive, Blacksburg, Virginia 24061, United States,
2. University Libraries, Virginia Tech, Blacksburg, Virginia 24061, United States,
3. Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
4. Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States, and