1. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
2. Department of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
3. Immunology Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
4. Clinical & Translational Science Center, Weill Cornell Medicine, New York, New York 10065, United States
5. Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada