1. Genomics Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, CA 92121, USA.
2. The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
3. Massachusetts General Hospital, Cutaneous Biology Research Center, Harvard Medical School, Building 149, 13th Street, Room 3219, Charlestown, MA 02129, USA.