Mr. Atwood has served as a member of our board of directors since March 2006. Since 1999, Mr. Atwood has served as a Managing Director of Versant Ventures I, LLC, Versant Ventures II, LLC and Versant Ventures III, LLC (Versant Ventures), a venture capital firm focusing on healthcare that he co-founded. Prior to founding Versant Ventures, Mr. Atwood served as a general partner of Brentwood Associates, a venture capital firm. Mr. Atwood also serves on the board of directors of Pharmion Corporation, ForteBio, FivePrime Therapeutics, Inc., Saegis Pharmaceuticals, Helicos Biosciences Corp. and Spaltudaq Corporation. Mr. Atwood holds a B.S. in biological sciences from the University of California, Irvine, an M.S. in ecology from the University of California, Davis and an M.B.A. from Harvard University.