Klinman touted for ‘willingness to set aside old theories'
Judith Klinman of the University of California, Berkeley, won the American Society for Biochemistry and Molecular Biology’s Mildred Cohn Award in Biological Chemistry for her far-reaching contributions to the field of mechanistic enzymology.
The Cohn award honors the scientific accomplishments and character of the late Cohn, the first president of the ASBMB. The award recognizes scientists who have advanced significantly the understanding of biological chemistry using innovative physical approaches.

“Judith Klinman’s accomplishments truly parallel those of Mildred Cohn, with respect to outstanding scientific achievement and advancing the cause of women in science,” affirmed Natalie G. Ahn of the University of Colorado Boulder, who nominated Klinman for the award. “As the first woman professor in any of the physical sciences at UC Berkeley, the first tenured female professor in the UC Berkeley chemistry department and later as the first woman chair of the chemistry department, she has been instrumental in changing attitudes toward women in science.”
Klinman earned her Ph.D. in organic chemistry from the University of Pennsylvania in 1966. Thereafter, she pursued postdoctoral studies at the Weizmann Institute of Science in Israel in physical organic chemistry and at the Fox Chase Cancer Center in biochemistry. In 1978, she began her professorship at UC Berkeley, where she remains to this day.
In his letter of support of Klinman’s nomination, Amnon Kohen of the University of Iowa emphasized “her discoveries of new biological cofactors that result from auto-catalyzed post-translational modification of natural amino acids; the elucidation of quantum mechanical effects in biological catalysis, and the identification of protein motions as the next critically under-understood area in enzymology.”
JoAnne Stubbe of the Massachusetts Institute of Technology added, “Judith’s contributions have received international recognition and have established her as arguably the best chemist studying detailed enzymatic mechanisms, in the world.”
Klinman’s pioneering discoveries have positioned her both at the forefront and interface of chemistry, biochemistry and biophysics.
“One of the most admirable characteristics of Judith is her willingness to set aside old theories and embrace new theories in an effort to explain the experimental data and understand the underlying fundamental principles,” said Sharon Hammes-Schiffer from the University of Illinois at Urbana-Champaign.
A member of both the American Academy of Arts and Sciences and the National Academy of Sciences, Klinman served as the president of the ASBMB from 1998 to 1999. She has received many awards, including the Merck Award from the ASBMB in 2007 and the National Medal of Science in 2014.
Previous Cohn award recipients include Lila M. Gierasch (2014) and Jennifer A. Doudna (2013).
Enjoy reading ASBMB Today?
Become a member to receive the print edition four times a year and the digital edition monthly.
Learn moreGet the latest from ASBMB Today
Enter your email address, and we’ll send you a weekly email with recent articles, interviews and more.
Latest in People
People highlights or most popular articles

Bassler receives National Medal of Science
She was recognized for her research on the molecular mechanisms bacteria use for intercellular communication.

2025 ASBMB election results
Learn about the new president, secretary, Council members and committee members.

2025 PROLAB awardees announced
Seven early-career scientists receive grants to advance their research by working in North American labs.

Yu receives early career research award
He will receive $35,000 to fund his research on the proteotype and cell signaling.

Neurobiology of stress and substance use
MOSAIC scholar and proud Latino, Bryan Cruz of Scripps Research Institute studies the neurochemical origins of PTSD-related alcohol use using a multidisciplinary approach.

Hargrove recognized for leadership
He is among more than 50 individuals from the Iowa State University College of Liberal Arts and Sciences to receive recognition for their departmental dedication and contributions.