Evidence map›Paper›PMID 22361683›Full record

ArticleCell death and differentiation2012

NOXA, a sensor of proteasome integrity, is degraded by 26S proteasomes by an ubiquitin-independent pathway that is blocked by MCL-1.

A Craxton, M Butterworth, N Harper, L Fairall, J Schwabe, A Ciechanover, G M Cohen

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Review
  3. A new era in cancer therapy: targeting the Proteasome-Bcl-2 axis.Journal of experimental & clinical cancer research : CR · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. BCL-2 protein family: attractive targets for cancer therapy.Apoptosis : an international journal on programmed cell death · 2023
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

A CraxtonMRC Toxicology Unit, Hodgkin Building, University of Leicester, Lancaster Road, Leicester LE1 9HN, UK.
M Butterworth
N Harper
L Fairall
J Schwabe
A Ciechanover
G M Cohen
University of Leicester · GBMRC Toxicology Unit · GBTechnion – Israel Institute of Technology · IL

Funding

Medical Research Council MC_U132615750
6 · The paper itself

Abstract

Ubiquitin (Ub)-mediated proteasome-dependent proteolysis is critical in regulating multiple biological processes including apoptosis. We show that the unstructured BH3-only protein, NOXA, is degraded by an Ub-independent mechanism requiring 19S regulatory particle (RP) subunits of the 26S proteasome, highlighting the possibility that other unstructured proteins reported to be degraded by 20S proteasomes in vitro may be bona fide 26S proteasome substrates in vivo. A lysine-less NOXA (NOXA-LL) mutant, which is not ubiquitinated, is degraded at a similar rate to wild-type NOXA. Myeloid cell leukemia 1, but not other anti-apoptotic BCL-2 family proteins, stabilizes NOXA by interaction with the NOXA BH3 domain. Depletion of 19S RP subunits, but not alternate proteasome activator REG subunits, increases NOXA half-life in vivo. A NOXA-LL mutant, which is not ubiquitinated, also requires an intact 26S proteasome for degradation. Depletion of the 19S non-ATPase subunit, PSMD1 induces NOXA-dependent apoptosis. Thus, disruption of 26S proteasome function by various mechanisms triggers the rapid accumulation of NOXA and subsequent cell death strongly implicating NOXA as a sensor of 26S proteasome integrity.

Indexed as

ProteolysisApoptosisHeLa CellsHumansMutation, MissenseMyeloid Cell Leukemia Sequence 1 ProteinProteasome Endopeptidase ComplexProto-Oncogene Proteins c-bcl-2UbiquitinUbiquitinationATP dependent 26S proteaseMyeloid Cell Leukemia Sequence 1 ProteinPMAIP1 protein, humanProteasome Endopeptidase ComplexProto-Oncogene Proteins c-bcl-2PSMD1 protein, humanUbiquitin

Identifiers

PMID22361683
PMCPMC3422467
OpenAlexW2059326556

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.