1. Receptor Biology (S.C.H., W.W., K.J.H., B.P., K.S.K.), National Institutes of Health, Research Triangle Park, North Carolina 27709
2. Laboratory of Reproductive and Developmental Toxicology, Biostatistics Branch (L.L.), National Institutes of Health, Research Triangle Park, North Carolina 27709
3. Integrative Bioinformatics (S.A.G., D.F.)
4. Department of Molecular and Cellular Biology (C.A.R., R.B.L., F.J.D.), Baylor College of Medicine, Houston, Texas 77030
5. Laboratory of Structural Biology (L.C.P.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709
6. Department of Molecular Biology of the Cell (G.S.), German Cancer Research Center, 69121 Heidelberg, Germany