1. Department of Cell Biology and Biochemistry (P.R.M., S.P.C., Y.J., D.M.S.), Texas Tech University Health Sciences Center, Lubbock, Texas 79430;
2. Scott Department of Urology (S.R.K.), Baylor College of Medicine, Houston, Texas 77030;
3. Physiologie et Physiopathologie (R.C.), Université Pierre et Marie Curie, Unité Mixte de Recherche, Centre Nationale de la Recherche Scientifique, 7079 Paris, France;
4. Institute of Reproductive and Developmental Biology (I.T.H.), Imperial College London, London W12 0NN, United Kingdom