Michael G. Rossmann

Michael G. Rossmann was a German-American biophysicist and a pioneer in the field of structural biology, renowned for his groundbreaking work on the architecture of viruses. His research, primarily conducted at Purdue University, fundamentally transformed the understanding of viral assembly, evolution, and infection mechanisms. He is best known for discovering the ubiquitous Rossmann fold, a structural motif critical for nucleotide binding in many proteins, and for determining the first atomic structures of animal viruses, including the common cold virus.

Early life and education

Born in Frankfurt to a Jewish family, he fled Nazi Germany with his parents in 1939, eventually settling in England. He pursued his higher education in the United Kingdom, earning a Bachelor of Science in physics from the University of Glasgow in 1951. He then completed a PhD in X-ray crystallography at Birkbeck College, University of London, under the supervision of the renowned crystallographer John Monteath Robertson. His doctoral work on the structure of phthalocyanine provided a strong foundation in crystallographic techniques that he would later apply to complex biological systems.

Career and research

After postdoctoral research at the University of Minnesota and a brief period at the University of Cambridge, he joined the faculty at Purdue University in 1964, where he remained for his entire career, establishing a world-leading laboratory for structural virology. At Purdue, he built a multidisciplinary team that combined X-ray crystallography, cryo-electron microscopy, and computational biology to tackle the immense challenge of solving large, asymmetric virus structures. His laboratory became a premier international center for viral structure determination, attracting collaborators and students from around the globe to study pathogens such as rhinovirus, dengue virus, and Zika virus.

Major scientific contributions

His most enduring contribution is the identification of the Rossmann fold, a supersecondary protein structure composed of parallel beta sheets flanked by alpha helices that serves as a binding site for cofactors like NAD+ and ATP. In virology, his team achieved landmark successes by solving the first atomic-resolution structures of an animal virus, human rhinovirus 14, and later, the common cold virus. These structures revealed the icosahedral symmetry of viral capsids and detailed the "canyon hypothesis" for receptor binding. His work on flaviviruses, including dengue virus and West Nile virus, provided critical insights into their assembly and the mechanism of antibody-mediated neutralization, informing vaccine design efforts.

Awards and honors

His seminal contributions were recognized with numerous prestigious awards. He received the Gairdner Foundation International Award in 1999 and the Gregori Aminoff Prize from the Royal Swedish Academy of Sciences in 2005. He was elected a member of the United States National Academy of Sciences in 1985 and a fellow of the Royal Society in 1998. Other notable honors include the Sir Hans Krebs Medal and the E.B. Wilson Medal from the American Society for Cell Biology. In 2016, he was awarded the International Union of Crystallography's Ewald Prize for his exceptional contributions to the field.

Personal life and legacy

He was married to Audrey Rossmann, and the couple had three children. He was known as a dedicated mentor who trained generations of scientists who now lead structural biology laboratories worldwide. Following his death in West Lafayette, Indiana, his legacy endures through the continued impact of his structural insights on antiviral drug discovery and vaccinology. The Rossmann fold remains a fundamental concept in protein science, and his methodological innovations continue to drive the structural analysis of ever-larger macromolecular complexes.

Category:American biophysicists Category:Structural biologists Category:Virologists Category:Members of the United States National Academy of Sciences Category:Fellows of the Royal Society