1. Department of Molecular Biology (K.F.T., X.D., S.A.K.), Dallas, Texas 75390
2. Department of Pharmacology (K.F.T., A.L.B., X.D., D.J.M., S.A.K.), Dallas, Texas 75390
3. Institute of Biochemistry (K.F.T.), Faculty of Medicine, University of Ljubljana, Zaloska 4, SI-1000 Ljubljana
4. Division of Hypothalamic Research (A.L.B.), Dallas, Texas 75390
5. Department of Internal Medicine, and Howard Hughes Medical Institute (A.L.B., D.J.M.),University of Texas Southwestern Medical Center, Dallas, Texas 75390
6. Department of Pathology (H.K., G.B.J., L.W., M.K.), Dallas, Texas 75390
7. Department of Pharmacology (R.G., M.M.), New York University School of Medicine, New York, New York 10016