1. Department of Chemistry Center for Diagnostics and Therapeutics Georgia State University Atlanta GA 30303 USA
2. Engineering Research Center of Cell and Therapeutic Antibody Ministry of Education, and School of Pharmacy Shanghai Jiao Tong University Shanghai China
3. Department of Chemistry Virginia Commonwealth University Richmond VA 23284 USA
4. Department of Chemistry and Biochemistry Berry College Mount Berry GA 30149 USA
5. Max Planck Institute for Multidisciplinary Sciences 37077 Göttingen Germany
6. Institute for Structural Biology Drug Discovery and Development Virginia Commonwealth University Richmond VA 23219 USA