A University of Washington scientist who was awarded the 1992 Nobel Prize in medicine for discovering a biological switch in cells has died. Dr. Edwin G. Krebs was 91.
Krebs passed away on Monday at a care facility in Seattle, university officials said Wednesday.
In the 1950s, Krebs and a colleague, Dr. Edmond Fisher, discovered that enzymes that help release energy in cells can be activated and deactivated by the presence of phosphate. The men published their findings without much acclaim.
The accolades didn’t come till years later, as more scientists discovered that phosphate is a key regulator of many cellular activities.
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