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| Mildred Cohn | |
|---|---|
| Name | Mildred Cohn |
| Birth date | 1913-05-26 |
| Birth place | Philadelphia, Pennsylvania, United States |
| Death date | 2009-12-07 |
| Death place | Wynnewood, Pennsylvania, United States |
| Nationality | American |
| Fields | Biochemistry, Biophysics, Enzymology |
| Alma mater | Bryn Mawr College, Columbia University |
| Known for | Application of nuclear magnetic resonance to biochemical systems, studies of adenosine triphosphate, enzyme mechanisms |
Mildred Cohn
Mildred Cohn was an American biochemist and biophysicist noted for pioneering applications of nuclear magnetic resonance in biochemical research, elucidating enzymatic mechanisms involving adenosine triphosphate and phosphoryl transfer. Her work bridged techniques associated with physical chemistry, enzymology, and cellular metabolism and influenced researchers across institutions such as Harvard University, Massachusetts Institute of Technology, Princeton University, Rockefeller University, and National Institutes of Health. Cohn's research informed contemporaries in fields linked to Frederick Sanger, Linus Pauling, Arthur Kornberg, Severo Ochoa, and shaped later studies by scientists at Stanford University, University of California, Berkeley, and Johns Hopkins University.
Born in Philadelphia, Cohn grew up in a milieu near cultural centers like Museum of Natural History and academic hubs including University of Pennsylvania and Temple University. She completed undergraduate studies at Bryn Mawr College, an institution associated with alumni such as Eudora Welty and faculty networks tied to Rockefeller Foundation support. Cohn pursued doctoral work at Columbia University during an era when scientists including Harvey Cushing and Hermann Muller were active, earning a Ph.D. under influences from researchers connected to Cornell University and Johns Hopkins University School of Medicine. During her early training she interacted with experimental traditions from laboratories at Cold Spring Harbor Laboratory and salons frequented by scholars from Princeton and Yale University.
Cohn's postdoctoral and faculty trajectory traversed laboratories at Rockefeller Institute, Carnegie Institution for Science, and biomedical centers including University of Pennsylvania School of Medicine and Columbia-Presbyterian Medical Center. She collaborated with investigators working on enzymology such as Arthur Kornberg, George Wald, Severo Ochoa, and chemists influenced by Linus Pauling and Dorothy Hodgkin. Cohn introduced nuclear magnetic resonance methods developed from physics groups at Bell Labs, Massachusetts Institute of Technology, and Princeton Plasma Physics Laboratory to biochemical problems, enabling studies that connected to concepts explored by Peter Mitchell, Albert Szent-Györgyi, Otto Warburg, and Hermann Emil Fischer. Her laboratories trained scientists who later joined faculties at Harvard Medical School, Yale School of Medicine, Stanford School of Medicine, University of California, San Francisco, and Columbia University Irving Medical Center.
Cohn applied isotopic techniques that linked to work by Willard Libby and Melvin Calvin and employed spectroscopic approaches related to efforts at Brookhaven National Laboratory and Argonne National Laboratory. She addressed biochemical pathways involving mitochondria as studied by George Palade and Keith Porter, and her studies of phosphoryl transfer resonated with research from Arthur Harden and Hans Krebs. Collaborations and intellectual exchange occurred with investigators associated with Howard Hughes Medical Institute, National Science Foundation, and laboratories funded by the National Institutes of Health.
Cohn demonstrated the utility of nuclear magnetic resonance in detecting positional isotopic and conformational changes in biomolecules, linking methods from Isidor Isaac Rabi and Felix Bloch with biochemical problems addressed by Erwin Chargaff and Phoebus Levene. She elucidated mechanisms of adenosine triphosphate utilization and phosphoryl transfer in enzymatic catalysis, forging conceptual connections with the work of Arthur Kornberg, Severo Ochoa, Paul Boyer, and John Walker. Her experiments provided evidence for substrate channeling and conformational dynamics akin to models proposed by Daniel Koshland and Monod, Wyman and Changeux theorists, and influenced later structural studies by Max Perutz, John Kendrew, Ada Yonath, and Venki Ramakrishnan.
Cohn's methodological innovations combined isotopic labeling, NMR spectroscopy, and enzyme kinetics, which informed biochemical investigations at institutions like Scripps Research Institute and University of California, San Diego. Her insights advanced understanding of energy transduction mechanisms relevant to research by Peter D. Mitchell and informed biomedical investigations intersecting with studies at National Cancer Institute and Howard Hughes Medical Institute laboratories.
Cohn received recognitions from organizations that also honored scientists such as National Academy of Sciences members including Rosalyn Yalow, Barbara McClintock, and Christian de Duve. Her accolades placed her among recipients associated with societies such as the American Academy of Arts and Sciences, American Association for the Advancement of Science, and professional groups like the American Society for Biochemistry and Molecular Biology and the Biophysical Society. She accepted lectureships alongside peers from Harvard University, Massachusetts Institute of Technology, Princeton University, Yale University, and Columbia University. Her career was noted by foundations that also supported laureates of the Nobel Prize in Physiology or Medicine such as James Watson, Francis Crick, and Francis Collins.
Cohn's personal network included colleagues from Bryn Mawr College, Columbia University, and research communities around Philadelphia and New York City. Her mentorship influenced generations at institutions like Rockefeller University, Harvard University, Johns Hopkins University, Yale University, Stanford University, and University of California, Berkeley. The methodological bridges she built between physical and biological sciences echo in contemporary programs at Massachusetts Institute of Technology, California Institute of Technology, Max Planck Society, and translational centers including Mayo Clinic and Cleveland Clinic. Her archival materials and oral histories reside with repositories associated with American Philosophical Society and university special collections at Bryn Mawr College and Columbia University Libraries, ensuring ongoing recognition in historical studies alongside figures such as Lise Meitner, Rosalind Franklin, and Rachel Carson.
Category:American biochemists Category:Women biochemists Category:Bryn Mawr College alumni Category:Columbia University alumni