Paul R. Ortiz de Montellano received his PhD in bioorganic chemistry from Harvard University, Cambridge, MA. After postdoctoral work as a North Atlantic Treaty Organization Fellow in Zürich, Switzerland, and a stint with Syntex in Mexico City and Palo Alto, California, he joined the faculty of the University of California in San Francisco, where he is currently Professor, Vice-chair of the Department of Pharmaceutical Chemistry, and Associate Dean for Research of the School of Pharmacy. His research interests center on the structure, mechanism, inhibition, and biochemistry of hemoproteins, including the cytochrome P450 enzymes. He has received the B.B. Brodie Award in Drug Metabolism from the American Society of Pharmacology and Experimental Therapeutics, the R.T. Williams Distinguished Scientific Achievement Award from the International Society for the Study of Xenobiotics, and the Ernest H. Volwiler Research Achievement Award from the American Association of Colleges of Pharmacy.