Cryo-EM structures of the human PA200 and PA200-20S complex reveal regulation of proteasome gate opening and two PA200 apertures.
Guan, H., Wang, Y., Yu, T., Huang, Y., Li, M., Saeed, A.F.U.H., Perculija, V., Li, D., Xiao, J., Wang, D., Zhu, P., Ouyang, S.(2020) PLoS Biol 18: e3000654-e3000654
- PubMed: 32134919 
- DOI: 10.1371/journal.pbio.3000654
- Primary Citation of Related Structures:  
6KWX, 6KWY - PubMed Abstract: 
Proteasomes are highly abundant and conserved protease complexes that eliminate unwanted proteins in the cells. As a single-chain ATP-independent nuclear proteasome activator, proteasome activator 200 (PA200) associates with 20S core particle to form proteasome complex that catalyzes polyubiquitin-independent degradation of acetylated histones, thus playing a pivotal role in DNA repair and spermatogenesis ...