Category:American biochemists

When Arthur Kornberg isolated DNA polymerase in 1956 and shared the Nobel Prize in Physiology or Medicine three years later, American biochemistry was already shifting from a discipline organized around metabolic pathways toward one centered on the molecules of heredity. The figures collected here trace that shift and what came after. They include enzymologists, structural biologists, neuropharmacologists, and the architects of the genetic engineering era. Several worked at federal laboratories, several built influential university departments, and a striking number went on to receive Nobel Prizes in either Chemistry or Physiology or Medicine.

Background

American biochemistry took recognizable institutional form in the first half of the twentieth century, supported by medical schools, the National Institutes of Health, and a cluster of research universities including Stanford, Washington University in St. Louis, the University of California, Berkeley, Rockefeller University, and the Massachusetts Institute of Technology. The post-1945 expansion of federal science funding gave the field unusual momentum. NIH intramural laboratories in Bethesda, the Howard Hughes Medical Institute investigator program established in the 1950s and greatly enlarged later, and competitive R01 grants from NIH study sections combined to produce a generation of researchers trained in both classical enzyme purification and the newer techniques of molecular cloning, X-ray crystallography, and structural mass spectrometry.

The careers here span roughly from the mid-century enzymology of Kornberg and Paul Boyer through the discovery of second messengers and G-protein signaling, the development of recombinant DNA tools, and on into the genome-editing and protein-design era of the twenty-first century. Many of these scientists trained one another. Doctoral and postdoctoral lineages link laboratories at Stanford, Washington University, Berkeley, Yale, and Duke in ways that the alphabetical listing below cannot easily show.

Notable members

The Nobel laureates in this category cluster around a small number of defining problems. On nucleic acids and the machinery of the gene, Arthur Kornberg worked on DNA replication, while his son Roger Kornberg received the 2006 Chemistry prize for the structural basis of eukaryotic transcription. Thomas A. Steitz shared the 2009 Chemistry prize for crystallographic work on the ribosome. Phillip Sharp shared the 1993 Physiology or Medicine prize for the discovery of split genes and RNA splicing. Paul Modrich, also listed under the variant Paul L. Modrich, shared the 2015 Chemistry prize for mechanistic studies of DNA mismatch repair. Jack Szostak shared the 2009 Physiology or Medicine prize for work on telomeres and telomerase.

A second cluster concerns signal transduction and pharmacology. Sutherland's discovery of cyclic AMP set the stage for work by Martin Rodbell and Alfred G. Gilman, who shared the 1994 Physiology or Medicine prize for G-proteins. (The category also contains a separate Alfred Gilman, the elder pharmacologist and co-author of the standard textbook on therapeutics.) Edmond Fischer and Edwin Krebs shared the 1992 prize for reversible protein phosphorylation, the regulatory principle behind much of cellular signaling. Ferid Murad and Robert Furchgott shared the 1998 prize, with colleagues, for the identification of nitric oxide as a signaling molecule. Robert Lefkowitz shared the 2012 Chemistry prize for studies of G-protein-coupled receptors.

A third cluster represents the methods revolution. Kary Mullis received the 1993 Chemistry prize for the polymerase chain reaction, a technique now embedded in essentially every molecular biology laboratory. Roger Tsien, who also appears under Roger Y. Tsien, shared the 2008 Chemistry prize for the development of green fluorescent protein into a general imaging tool. George P. Smith shared the 2018 Chemistry prize for phage display, and Frances Arnold shared the same year's prize for the directed evolution of enzymes. Arieh Warshel shared the 2013 Chemistry prize for multiscale computational models of biomolecular systems. David Baker shared the 2024 Chemistry prize for computational protein design. Jennifer Doudna shared the 2020 Chemistry prize for the development of CRISPR-Cas9 genome editing. Katalin Karikó, whose modified-nucleoside work underlies mRNA vaccines, shared the 2023 Physiology or Medicine prize.

Other distinct contributions are represented as well. Stanley Prusiner received the 1997 Physiology or Medicine prize for the prion concept, a protein-only infectious agent. Oliver Smithies shared the 2007 prize for gene targeting in mice. James Rothman shared the 2013 Physiology or Medicine prize for vesicle trafficking. Irwin Rose shared the 2004 Chemistry prize for the ubiquitin system of regulated protein degradation. Paul Boyer shared the 1997 Chemistry prize for the rotational mechanism of ATP synthase. Not every figure in the category is a Nobel laureate; J. Larry Jameson, for example, is known primarily as an endocrinologist, medical educator, and academic administrator whose work crosses biochemistry, clinical medicine, and institutional leadership.

Sub-fields and methods

Read together, the careers in this category map the principal sub-disciplines of modern biochemistry. Enzymology and metabolism are represented through work on DNA polymerases, ATP synthase, kinases and phosphatases, and the ubiquitin-proteasome pathway. Structural biology is represented through crystallographic studies of the ribosome and of RNA polymerase II, and through the computational design of new protein folds. Molecular genetics and gene expression appear in the form of RNA splicing, mismatch repair, telomere maintenance, and programmable nucleases. Cell signaling and pharmacology appear through cyclic AMP, G-proteins, nitric oxide, and G-protein-coupled receptors. Chemical biology and imaging are represented through fluorescent proteins, directed evolution, phage display, and PCR.

The techniques developed by these researchers are themselves part of the legacy. PCR, site-directed mutagenesis, gene targeting in mouse embryonic stem cells, fluorescent protein tagging, CRISPR-based editing, phage display libraries, directed evolution, and nucleoside-modified mRNA are all now routine. Several originated in the laboratories of people listed here.

Training and institutions

The institutional pattern is consistent. Doctoral training typically took place at a major American or, in some cases, European research university, followed by a postdoctoral appointment in a leading laboratory. Faculty appointments concentrated at a relatively small number of institutions: Stanford, Berkeley, University of California, San Francisco, Harvard, MIT, Yale, Duke University, Washington University in St. Louis, the University of Washington, and the NIH intramural program recur frequently. The Howard Hughes Medical Institute supported many of these investigators for long stretches of their careers. Membership in the National Academy of Sciences is essentially universal among the group, and several have served on its governing council or on presidential science advisory bodies.

The category therefore functions as a partial map of American biochemistry across roughly seventy years, from the enzymological tradition of the 1950s to the protein-design and RNA-therapeutics work of the 2020s.