1. Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United States
2. Department
of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
3. Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
4. Laboratory
of Respiratory and Special Pathogens, Division of Bacterial, Parasitic,
and Allergenic Products, Center for Biologics Evaluation, and Research, Food and Drug Administration, Silver Spring, Maryland 20993, United States