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Pharmaceutical and Biomedical Sciences Department, University of Georgia, 240 W. Green St., Athens, Georgia (A.G.R.); Unaffiliated (J.C.S.); Department of Pharmaceutical Sciences, West Virginia University, Morgantown, West Virginia (G.D.S.); Departments of Medicinal Chemistry, Pharmacology, and Biological Chemistry and the Program in Biophysics, University of Michigan, Ann Arbor, Michigan (E.E.S.); Department of Pharmaceutical Sciences, The University of Tennessee Health Science Center, Memphis, Tennessee (S.K.); Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Albany, New York (M.B.S.); Department of Pharmacology and Toxicology, University of Arizona, 1703 E. Mabel Street, P.O. Box 210207, Tucson, Arizona (J.R.H.).
Published: January 2023
AI Article Synopsis
Article Abstract
This article features selected findings from the senior author and colleagues dating back to 1978 and covering approximately three-fourths of the 60 years since the discovery of cytochrome P450. Considering the vast number of P450 enzymes in this amazing superfamily and their importance for so many fields of science and medicine, including drug design and development, drug therapy, environmental health, and biotechnology, a comprehensive review of even a single topic is daunting. To make a meaningful contribution to the 50th anniversary of , we trace the development of the research in a single P450 laboratory through the eyes of seven individuals with different backgrounds, perspectives, and subsequent career trajectories. All co-authors are united in their fascination for the structural basis of mammalian P450 substrate and inhibitor selectivity and using such information to improve drug design and therapy. An underlying theme is how technological advances enable scientific discoveries that were impossible and even inconceivable to prior generations. The work performed spans the continuum from: 1) purification of P450 enzymes from animal tissues to purification of expressed human P450 enzymes and their site-directed mutants from bacteria; 2) inhibition, metabolism, and spectral studies to isothermal titration calorimetry, deuterium exchange mass spectrometry, and NMR; 3) homology models based on bacterial P450 X-ray crystal structures to rabbit and human P450 structures in complex with a wide variety of ligands. Our hope is that humanizing the scientific endeavor will encourage new generations of scientists to make fundamental new discoveries in the P450 field. SIGNIFICANCE STATEMENT: The manuscript summarizes four decades of work from Dr. James Halpert's laboratory, whose investigations have shaped the cytochrome P450 field, and provides insightful perspectives of the co-authors. This work will also inspire future drug metabolism scientists to make critical new discoveries in the cytochrome P450 field.
