1. Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA.
2. Division of Cellular Biology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
3. Core Microscopy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
4. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
5. Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA.
6. Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, 92037, USA.
7. Veterans Affairs San Diego Healthcare System, San Diego, CA 90026, USA.