Ada Yonath
Pioneer of ribosome structure research and Nobel laureate in chemistry
Ada Yonath (1939–2026) devoted her research to one of life’s fundamental mechanisms: the ribosome, where genetic information is translated into proteins. To understand how it works, she sought to reveal its complex structure at atomic resolution. A task considered exceptionally difficult became, through her work and that of her colleagues, a major achievement in structural biology.
Curiosity despite limited means
Yonath was born in Jerusalem into a family with little money. After her father’s death, the family moved to Tel Aviv, where she helped support them through work that included tutoring. She studied chemistry and biochemistry at the Hebrew University and completed a doctorate on collagen structure at Weizmann in 1968 under Wolfie Traub. Following research in the United States, she returned and established a protein crystallography laboratory in 1970.
Revealing the machinery that makes proteins
The ribosome is large, complex and delicate. Investigating it with X-rays required suitable crystals and ways of reducing radiation damage. Yonath and her research teams developed methods that made increasingly detailed structures possible. The work involved sustained international cooperation, including groups at Weizmann and in Germany.
Understanding ribosome structure clarified how amino acids are assembled into proteins and how certain antibiotics bind to bacterial ribosomes and interfere with their activity. Her research strengthened the molecular basis for understanding these medicines and exploring further therapeutic approaches.
Recognition and scientific mentorship
In 2009 she shared the Nobel Prize in Chemistry with Venkatraman Ramakrishnan and Thomas Steitz, becoming the first Israeli woman to receive a Nobel Prize. Alongside research, she trained younger scientists and encouraged public curiosity about science. She died on August 31, 2026, after a career distinguished by experimental persistence, ingenuity and long-term collaboration.
Why this legacy belongs in Moreshet
Moreshet includes Yonath for an Israeli contribution to understanding a process shared by all forms of life. Moreshet.com records both knowledge that transformed a field and the example of a researcher who treated difficulty as a question to investigate. Her achievement also widened the futures that young women in Israel could imagine for themselves in science.
