Dr. King investigates the basic mechanisms that control the division of eukaryotic cells. The lab focuses on the ubiquitin-proteasome system, a complex network of proteins that controls the abundance of proteins in the cell, including many that regulate cell division. The goal of the lab is to understand the basic mechanisms that regulate cell division, but also to identify new targets for disease therapy. His work at the interface of chemistry and biology has identified small molecules that target the Anaphase-Promoting Complex and proteasome-associated deubiquitinating enzymes. His lab is interested in the development of these molecules for treatment of cancer and neurodegenerative disease.

Dr. King has also been deeply involved in education at Harvard. For the past 10 years, he has directed the first year medical school course in biochemistry and cell biology. He is helping lead the design and implementation of a new integrated medical school curriculum called Pathways. In the graduate school he co-teaches a course on experimental design.