Cited by 1,099Ubiquitin and proteasome pathwaysHeat shock proteins researchEndoplasmic Reticulum Stress and Disease

The AAA ATPase Cdc48/p97 and its partners transport proteins from the ER into the cytosol

Ye, Yihong, Meyer, Hemmo H., Rapoport, Tom A.·2001·Nature

Abstract

In eukaryotic cells, incorrectly folded proteins in the endoplasmic reticulum (ER) are exported into the cytosol and degraded by the proteasome. This pathway is co-opted by some viruses. For example, the US11 protein of the human cytomegalovirus targets the major histocompatibility complex class I heavy chain for cytosolic degradation. How proteins are extracted from the ER membrane is unknown. In bacteria and mitochondria, members of the AAA ATPase family are involved in extracting and degrading membrane proteins. Here we demonstrate that another member of this family, Cdc48 in yeast and p97 in mammals, is required for the export of ER proteins into the cytosol. Whereas Cdc48/p97 was previously known to function in a complex with the cofactor p47 (ref. 5) in membrane fusion, we demonstrate that its role in ER protein export requires the interacting partners Ufd1 and Npl4. The AAA ATPase interacts with substrates at the ER membrane and is needed to release them as polyubiquitinated species into the cytosol. We propose that the Cdc48/p97-Ufd1-Npl4 complex extracts proteins from the ER membrane for cytosolic degradation.

Integrity signals

Registry

Crossref · 10.1038/414652a

Cites

30 of 30 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • During ER stress, misfolded proteins accumulate in the ER lumen and are retrotranslocated into the cytosol, ubiquitinated, and degraded by the proteasome in ER-associated protein degradation (ERAD).

    “During ER stress, misfolded proteins accumulate into the ER lumen. They need to be retrotranslocated into the cytosol, where they are flagged with ubiquitin and degraded by the proteasome in a process called ER-associated protein degradation (ERAD) [47].”
  • p97/VCP is critical in the retrotranslocation and degradation of endoplasmic reticulum-associated proteins (ERAD) and mitochondrial proteins (MAD).

    “p97/VCP is critical in the retrotranslocation and degradation of endoplasmic reticulum-associated proteins (ERAD) [47] and mitochondrial proteins ( MAD) [49, 50].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ye, Y., Meyer, H. H., & Rapoport, T. A.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Yale University (US)
Corresponding author
Rapoport, Tom A.
Venue
Nature
Published
2001-12-06
Volume
414
Issue
6864
Pages
652-656
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2033088972
Cited by
1,099
References
30
Citations by year
2026: 16 · 2025: 16 · 2024: 32 · 2023: 34 · 2022: 26 · 2021: 31 · 2020: 41 · 2019: 40 · 2018: 42 · 2017: 39 · 2016: 51 · 2015: 37 · 2014: 40 · 2013: 59 · 2012: 59
FWCI
16.41
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
Keywords
Cdc48/p97, AAA+ ATPase, Ufd1, Npl4, polyubiquitination, proteasome, misfolded proteins, MHC class I heavy chain, membrane fusion, yeast, mammalian cells
MeSH terms
Valosin Containing Protein, Adenosine Triphosphatases, Animals, Carboxypeptidases, Carrier Proteins, Cytosol, Endoplasmic Reticulum, H-2 Antigens, Membrane Proteins, Mutation, Nuclear Proteins, Proteins, Saccharomyces cerevisiae, Tumor Cells, Cultured, Histocompatibility Antigens Class I, Protein Folding, Cell Cycle Proteins, Protein Transport, Nuclear Pore Complex Proteins, Nucleocytoplasmic Transport Proteins, Saccharomyces cerevisiae Proteins, Vesicular Transport Proteins, Adaptor Proteins, Vesicular Transport, Cathepsin A, Intracellular Signaling Peptides and Proteins, Rats, Soluble N-Ethylmaleimide-Sensitive Factor Attachment Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review