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Aaron Ciechanover's primary area of research is cell biology. He is a biochemist and a professor at the Technion – Israel Institute of Technology in Haifa, Israel. He was awarded the Nobel Prize in Chemistry in 2004, along with Avram Hershko and Irwin Rose, for their discovery of ubiquitin-mediated protein degradation. Ciechanover's research has focused on the ubiquitin-proteasome system, a cellular mechanism that degrades proteins that are no longer needed.