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Recruitment of the P97 ATPase and Ubiquitin Ligases to the Site of Retrotranslocation at the Endoplasmic Reticulum Membrane

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Specialty Science
Date 2005 Sep 28
PMID 16186510
Citations 171
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Abstract

Misfolded proteins are eliminated from the endoplasmic reticulum (ER) by retrotranslocation into the cytosol, a pathway hijacked by certain viruses to destroy MHC class I heavy chains. The translocation of polypeptides across the ER membrane requires their polyubiquitination and subsequent extraction from the membrane by the p97 ATPase [also called valosin-containing protein (VCP) or, in yeast, Cdc48]. In higher eukaryotes, p97 is bound to the ER membrane by a membrane protein complex containing Derlin-1 and VCP-interacting membrane protein (VIMP). How the ubiquitination machinery is recruited to the p97/Derlin/VIMP complex is unclear. Here, we report that p97 interacts directly with several ubiquitin ligases and facilitates their recruitment to Derlin-1. During retrotranslocation, a substrate first interacts with Derlin-1 before p97 and other factors join the complex. These data, together with the fact that Derlin-1 is a multispanning membrane protein forming homo-oligomers, support the idea that Derlin-1 is part of a retrotranslocation channel that is associated with both the polyubiquitination and p97-ATPase machineries.

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References
1.
Wilhovsky S, Gardner R, Hampton R . HRD gene dependence of endoplasmic reticulum-associated degradation. Mol Biol Cell. 2000; 11(5):1697-708. PMC: 14877. DOI: 10.1091/mbc.11.5.1697. View

2.
Koegl M, Hoppe T, Schlenker S, Ulrich H, Mayer T, Jentsch S . A novel ubiquitination factor, E4, is involved in multiubiquitin chain assembly. Cell. 1999; 96(5):635-44. DOI: 10.1016/s0092-8674(00)80574-7. View

3.
Meyer H, Shorter J, Seemann J, Pappin D, Warren G . A complex of mammalian ufd1 and npl4 links the AAA-ATPase, p97, to ubiquitin and nuclear transport pathways. EMBO J. 2000; 19(10):2181-92. PMC: 384367. DOI: 10.1093/emboj/19.10.2181. View

4.
Tortorella D, Gewurz B, Furman M, Schust D, Ploegh H . Viral subversion of the immune system. Annu Rev Immunol. 2000; 18:861-926. DOI: 10.1146/annurev.immunol.18.1.861. View

5.
MEACHAM G, Patterson C, Zhang W, Younger J, Cyr D . The Hsc70 co-chaperone CHIP targets immature CFTR for proteasomal degradation. Nat Cell Biol. 2001; 3(1):100-5. DOI: 10.1038/35050509. View