Nathan Oram Kaplan (June 25, 1917 – April 15, 1986) was an American biochemist who studied enzymology and chemotherapy.
in chemistry at UCLA in 1939, Kaplan studied carbohydrate metabolism in the liver under David M. Greenberg at the University of California, Berkeley medical school.
From 1945 to 1949, Kaplan worked with Fritz Lipmann, G. David Novelli, and Beverly Guirard to study coenzyme A.
In 1968, Kaplan moved to the University of California, San Diego, where he studied the role of lactate dehydrogenase in cancer.
[3] Kaplan was, with Sidney Colowick, a founding editor of the scientific book series Methods in Enzymology.