1. Department
of Otolaryngology − Head and Neck Surgery, University of Washington, Seattle, Washington 98195, United States
2. Division
of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of
Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
3. Department
of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
4. X-ray
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
5. Department
of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States