Evidence map›Paper›PMID 27405762›Full record

ArticleThe Journal of biological chemistry2016

Substrate Ubiquitination Controls the Unfolding Ability of the Proteasome.

Eden L Reichard, Giavanna G Chirico, William J Dewey, Nicholas D Nassif, Katelyn E Bard, Nickolas E Millas, Daniel A Kraut

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Phase separation of polyubiquitinated proteins in UBQLN2 condensates controls substrate fate.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Article
  9. Review
  10. Article
  11. Ubiquitin modulates 26Science advances · 2022
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Proteasomal conformation controls unfolding ability.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  18. Review
  19. Mode of targeting to the proteasome determines GFP fate.The Journal of biological chemistry · 2020
    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.

Eden L ReichardFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
Giavanna G ChiricoFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
William J DeweyFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
Nicholas D NassifFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
Katelyn E BardFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
Nickolas E MillasFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085.
Daniel A KrautFrom the Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085 daniel.kraut@villanova.edu.ORCID 0000-0002-4428-5832

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In eukaryotic cells, proteins are targeted to the proteasome for degradation by polyubiquitination. These proteins bind to ubiquitin receptors, are engaged and unfolded by proteasomal ATPases, and are processively degraded. The factors determining to what extent the proteasome can successfully unfold and degrade a substrate are still poorly understood. We find that the architecture of polyubiquitin chains attached to a substrate affects the ability of the proteasome to unfold and degrade the substrate, with K48- or mixed-linkage chains leading to greater processivity than K63-linked chains. Ubiquitin-independent targeting of substrates to the proteasome gave substantially lower processivity of degradation than ubiquitin-dependent targeting. Thus, even though ubiquitin chains are removed early in degradation, during substrate engagement, remarkably they dramatically affect the later unfolding of a protein domain. Our work supports a model in which a polyubiquitin chain associated with a substrate switches the proteasome into an activated state that persists throughout the degradation process.

Indexed as

Models, BiologicalProtein UnfoldingProteolysisUbiquitinationHumansPolyubiquitinProteasome Endopeptidase ComplexPolyubiquitinProteasome Endopeptidase ComplexATPases associated with diverse cellular activities (AAA)ATP-dependent proteaseenzyme kineticsenzyme mechanismpre-steady-state kineticsproteasomeprotein degradationprotein unfolding

Identifiers

PMID27405762
PMCPMC5000099

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.