1. Departments
of Chemistry and Immunology and Microbial Science, The Skaggs Institute
for Chemical Biology, and The Worm Institute of Research and Medicine, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
2. Lindsley
F. Kimball Research Institute, New York Blood Center, New York, New York 10065, United States