In the laboratory of C.E. Schutt, Dr. Bowman focused on X-ray crystallography, studying actin-binding proteins and an enterotoxin from rotavirus. He continued a focus on structural biology as a postdoc in the laboratory of John Kuriyan at UC Berkeley, where his structure of the pentameric RFC clamp loader bound to the trimeric PCNA sliding clamp suggested how DNA stimulated ATP hydrolysis and release of the clamp. He joined the faculty of the Biophysics Department at Johns Hopkins in 2005, where his group’s focus has been on the structure and mechanisms of chromatin remodelers.