1. Biomolecular Resource CenterUniversity of CaliforniaSan FranciscoCalifornia94143‐0541USA
2. University of Wisconsin Biotechnology CenterMadisonWisconsin53705USA
3. Amgen IncAmgen CenterThousand OaksCalifornia91320USA
4. Autoimmune128 Spring St.LexingtonMassachusetts02174USA
5. Department of EntomologyInstitute for Biosciences and TechnologyTexas Agricultural Experimental StationTexas A & M UniversityCollege StationTexas77843‐2475USA