Crossref journal-article
Rockefeller University Press
The Journal of Cell Biology (291)
Abstract

The unfolded protein response (UPR) is an intracellular signaling pathway that relays signals from the lumen of the ER to activate target genes in the nucleus. We devised a genetic screen in the yeast Saccharomyces cerevisiae to isolate mutants that are dependent on activation of the pathway for viability. Using this strategy, we isolated mutants affecting various aspects of ER function, including protein translocation, folding, glycosylation, glycosylphosphatidylinositol modification, and ER-associated protein degradation (ERAD). Extending results gleaned from the genetic studies, we demonstrate that the UPR regulates trafficking of proteins at the translocon to balance the needs of biosynthesis and ERAD. The approach also revealed connections of the UPR to other regulatory pathways. In particular, we identified SON1/RPN4, a recently described transcriptional regulator for genes encoding subunits of the proteasome. Our genetic strategy, therefore, offers a powerful means to provide insight into the physiology of the UPR and to identify novel genes with roles in many aspects of secretory and membrane protein biogenesis.

Bibliography

Ng, D. T. W., Spear, E. D., & Walter, P. (2000). The Unfolded Protein Response Regulates Multiple Aspects of Secretory and Membrane Protein Biogenesis and Endoplasmic Reticulum Quality Control. The Journal of Cell Biology, 150(1), 77–88.

Authors 3
  1. Davis T.W. Ng (first)
  2. Eric D. Spear (additional)
  3. Peter Walter (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 12:45 p.m.)
Deposited 2 years, 1 month ago (July 22, 2023, 7:07 a.m.)
Indexed 1 month, 2 weeks ago (July 7, 2025, 1:25 a.m.)
Issued 25 years, 1 month ago (July 10, 2000)
Published 25 years, 1 month ago (July 10, 2000)
Published Online 25 years, 1 month ago (July 10, 2000)
Published Print 25 years, 1 month ago (July 10, 2000)
Funders 0

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@article{Ng_2000, title={The Unfolded Protein Response Regulates Multiple Aspects of Secretory and Membrane Protein Biogenesis and Endoplasmic Reticulum Quality Control}, volume={150}, ISSN={1540-8140}, url={http://dx.doi.org/10.1083/jcb.150.1.77}, DOI={10.1083/jcb.150.1.77}, number={1}, journal={The Journal of Cell Biology}, publisher={Rockefeller University Press}, author={Ng, Davis T.W. and Spear, Eric D. and Walter, Peter}, year={2000}, month=jul, pages={77–88} }