Thorner stands as a giant in the golden age of yeast research

He won ASBMB's Herb Tabor Research Award
Gelareh (Abulwerdi)  Vinueza
April 1, 2019

Saccharomyces cerevisiae is a species of yeast, a unicellular organism long used by bakers and brewers. As a eukaryotic single-cell microbe, yeast is also a great organism for research. Among the pioneers in studying yeast is Jeremy Thorner, who has increased understanding of signal transduction in several diseases, using yeast as a research model.

Jeremy Thorner
“I feel very honored to be the most recent (2019) recipient of the ASBMB Herbert Tabor Research Award. The year (1971) Herb ascended to editor-in-chief of the JBC coincided with my first scientific publication (in the JBC, of course!) and his superb stewardship of the journal over the next four decades is legendary among biochemists. Having the opportunity to be a scientist and do research has been an enormous privilege.”

— Jeremy Thorner

For his breakthrough research and other contributions to science, Thorner, a professor of biochemistry, biophysics and structural biology at the University of California, Berkeley, has won the American Society for Biochemistry and Molecular Biology’s 2019 Herbert Tabor Research Award, which honors excellence in biological chemistry and molecular biology and contributions to the community of scientists.

Thorner grew up in Quincy, Massachusetts. He received his Ph.D. in biochemistry from Harvard University in 1972 under the guidance of Henry Paulus, studying a model allosteric enzyme, E. coli glycerol kinase. As a postdoctoral fellow under I. Robert Lehman at Stanford University, he studied T4 phage and E. coli DNA replication.

At a Lake Arrowhead Genetics Conference in Los Angeles, Thorner ran into Ira Herskowitz, an acquaintance from graduate school, who was studying mating-type switching in yeast. At Herskowitz’s suggestion, Thorner enrolled in the Cold Spring Harbor yeast genetics course, which led him to establish projects working with yeast in his own lab when he joined the faculty at UC Berkeley in 1974.

Along with an early student, David Julius, Thorner published seminal papers describing the mechanisms by which the peptide mating pheromones of yeast are produced. One of these factors is pheromone precursor prepro-alpha-factor, which is processed to its active form through the secretory pathway. Julius and Thorner discovered Kex2, a prohormone-processing endoprotease whose mammalian orthologs are important in maturation of proinsulin and other bioactive peptides. These discoveries contributed to making recombinant insulin for treating diabetes.

Using yeast, Thorner studied G-protein coupled receptors, or GPCRs, and their downstream signaling cascades. He cloned the first MAP kinase, Kss1, and showed that these kinases are downstream of GPCRs. This work helped illuminate certain pathways that are important in cancer treatment.

Michael Hall of the University of Basel nominated Thorner for the award, calling him “one of the giants of the golden age of yeast research.” Hall wrote in his nomination letter that Thorner “has continually made groundbreaking contributions of great importance to our understanding of hormone action, signal transduction and cellular morphogenesis at the biochemical level.”

Thorner is an outstanding mentor, according to Hall, “with at least seven former Ph.D. students and fifteen postdocs in faculty positions at distinguished universities.” He is also a longtime journal editor who “tirelessly writes lengthy emails to authors to ensure a fair, constructive review process,” Hall wrote.

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Gelareh (Abulwerdi)  Vinueza

Gelareh (Abulwerdi) Vinueza graduated with her Ph.D. from the molecular medicine program at the University of Maryland, Baltimore. She is currently a policy fellow at the Food and Drug Administration. She has been an ASBMB volunteer writer since 2018 and is passionate about science communication and science policy. Outside of work, she enjoys photography, hiking and cooking.

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