Contains professional papers of Robert J. Lefkowitz, James B. Duke Professor of Medicine and Biochemistry and Howard Hughes Medical Institute Investigator in the Department of Biochemistry at Duke University Medical Center. Types of materials include travel and conference materials, speeches, memoranda, committee materials, awards and honors, former employee files, old equipment files, grant materials, alumni files, material transfer agreements, mice invoices, research, and digital files. Major subjects include Duke University Department of Biochemistry, Duke University School of Medicine, and the Howard Hughes Medical Institute. Materials range in date from 1962 to 2023.