Gregory Petsko

Gregory A. Petsko (born August 7, 1948) is an American biochemist and member of the National Academy of Sciences, the National Academy of Medicine, the American Academy of Arts and Sciences, and the American Philosophical Society. He is currently Professor of Neurology at the Ann Romney Center for Neurologic Diseases at Harvard Medical School and Brigham and Women's Hospital. He formerly had an endowed professorship (the Arthur J. Mahon Chair) in Neurology and Neuroscience at Weill Cornell Medical College and is still an adjunct professor of Biomedical Engineering at Cornell University, and is also the Gyula and Katica Tauber Professor, Emeritus, in biochemistry and chemistry at Brandeis University. On October 24, 2023, in a ceremony in the East Room of the White House, President Joe Biden presented Gregory Petsko and eight others with the National Medal of Science, the highest honor the United States can bestow on a scientist and engineer.

As of 2020 Petsko's research interests are understanding the biochemical bases of neurological diseases like Alzheimer's, Parkinson's, and ALS, discovering drugs (especially by using structure-based drug design) and biologics, especially gene therapy, that could therapeutically affect those biochemical targets, and seeing any resulting clinical candidates tested in humans. He has made key contributions to the fields of protein crystallography, biochemistry, biophysics, enzymology, and neuroscience.