1. Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA
2. Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, USA
3. Department of Biochemistry, Virginia Tech, Blacksburg, Virginia, USA
4. Virginia Tech Center for Emerging, Zoonotic and Arthropod-borne Pathogens, Virginia Tech, Blacksburg, Virginia, USA
5. Department of Chemistry, Virginia Tech, Blacksburg, Virginia, USA