1. Department of Microbiology, University of Alabama at Birmingham, 1025 18th Street South, Birmingham, Alabama 35294, United States
2. Institute of Biochemistry, ETH Zurich, HPM E8.2, Otto-Stern-Weg 3, 8093 Zurich, Switzerland
3. Laboratory
of Structural Biology, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
4. Department of Chemistry College of Arts
and Sciences, Georgia State University, Atlanta, Georgia 30302, United States