1. Department of Pathology (A.C.B., E.K.G.-H., S.A.L., H.W., S.M.A., D.P.E.), Aurora, Colorado 80045
2. Baylor College of Medicine (S.L.W., J.M.R., D.P.E.), Department of Molecular and Cellular Biology, Houston, Texas 77030
3. Division of Medical Biochemistry (W.D.), Biocenter, Innsbruck Medical University, Innsbruck A-6020, Austria
4. Department of Microbiology (J.S.), University of Colorado Health Sciences Center, Aurora, Colorado 80045
5. Program in Molecular Biology (S.M.A., D.P.E.), Aurora, Colorado 80045