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Updated: Jul 1, 2026

Examining Proteasome Assembly with Recombinant Archaeal Proteasomes and Nondenaturing PAGE: The Case for a Combined Approach
Published on: December 17, 2016
Chaperone-driven proteasome assembly
Rina Rosenzweig1, Michael H Glickman
1Department of Biology, Technion - Israel Institute of Technology, 32000 Haifa, Israel.
Abstract:
Assembly of the 34-subunit, 2.5 MDa 26S proteasome is a carefully choreographed intricate process. It starts with formation of a seven-membered alpha-ring that serves as a template for assembly of the complementary beta-ring-forming 'half-proteasomes'. Dimerization results in a latent 20S core particle that can serve further as a platform for 19S regulatory particle attachment and formation of the biologically active 26S proteasome for ubiquitin-dependent proteolysis. Both general and dedicated proteasome assembly chaperones regulate the efficiency and outcome of critical steps in proteasome biogenesis, and in complex association.
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