1. VA Puget Sound Health Care System, Seattle, Washington 98108 1 ;
2. Department of Cell Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232 2 ; and
3. Medicine, 3 University of Washington School of Medicine, Seattle, Washington 98195;
4. Departments of Pathology,4
5. Laboratory Medicine, 5 and
6. Laboratory of Molecular Pharmacology, Division of Basic Science, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 208926