1. Signaling Systems Laboratory, University of California–San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
2. Department of Chemistry and Biochemistry, University of California–San Diego, La Jolla, CA 92093, USA.
3. San Diego Center for Systems Biology, University of California–San Diego, La Jolla, CA 92093, USA.
4. Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA.
5. Department of Immunology, University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Houston, TX 77030, USA.
6. San Diego Supercomputer Center, University of California–San Diego, La Jolla, CA 92093, USA.