Evidence map›Paper›PMID 10688918›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

Physical association of ubiquitin ligases and the 26S proteasome.

Y Xie, A Varshavsky

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

67 citing papers in PubMed, 179 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Analysis of Proteasome-Associated Ubiquitin Ligase Activity.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  5. Structural basis for the N-degron specificity of ClpS1 from Arabidopsis thaliana.Protein science : a publication of the Protein Society · 2021
    Article
  6. Review
  7. Article
  8. Five enzymes of the Arg/N-degron pathway form a targeting complex: The concept of superchanneling.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  9. The Proteasome and Its Network: Engineering for Adaptability.Cold Spring Harbor perspectives in biology · 2020
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Localization of the proteasomal ubiquitin receptors Rpn10 and Rpn13 by electron cryomicroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  20. Molecular architecture of the 26S proteasome holocomplex determined by an integrative approach.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article

7 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Y XieDivision of Biology, California Institute of Technology, Pasadena, CA 91125, USA.
A Varshavsky
California Institute of Technology · US

Funding

The Functions, Mechanisms, and Regulation of N-Terminal ArginylationR01GM031530 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI ALEXANDER J VARSHAVSKY · 1985 to 2026
$14.5M
Ubiquitin Ligases, Mechanisms and Functions of the N-End Rule PathwayR01DK039520 · NIDDK · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI VARSHAVSKY, ALEXANDER J · 1988 to 2025
$10.0M
MECHANICS AND FUNCTIONS OF THE N-END RULE PATHWAYR37DK039520 · NIDDK · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI VARSHAVSKY, ALEXANDER J · 1998 to 2007
$4.4M
Ubiquitin Ligases, Mechanisms and Functions of the N-End Rule PathwayR56DK039520 · NIDDK · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI VARSHAVSKY, ALEXANDER J · 2008 to 2008
$161k
NIDDK NIH HHS DK39520NIDDK NIH HHS R01 DK039520NIDDK NIH HHS R37 DK039520NIDDK NIH HHS R56 DK039520NIGMS NIH HHS GM31530NIGMS NIH HHS R01 GM031530
6 · The paper itself

Abstract

The ubiquitin (Ub) system recognizes degradation signals of the target proteins through the E3 components of E3-E2 Ub ligases. A targeted substrate bears a covalently linked multi-Ub chain and is degraded by the ATP-dependent 26S proteasome, which consists of the 20S core protease and two 19S particles. The latter mediate the binding and unfolding of a substrate protein before its transfer to the interior of the 20S core. It is unclear how a targeted substrate is delivered to the 26S proteasome, inasmuch as Rpn10p, the only known proteasomal subunit that binds multi-Ub chains, has been found to be not essential for degradation of many proteins in the yeast Saccharomyces cerevisiae. Here we show that Ubr1p and Ufd4p, the E3 components of two distinct Ub ligases, directly interact with the 26S proteasome. Specifically, Ubr1p is shown to bind to the Rpn2p, Rpt1p, and Rpt6p proteins of the 19S particle, and Ufd4p is shown to bind to Rpt6p. These and related results suggest that a substrate-bound Ub ligase participates in the delivery of substrates to the proteasome, because of affinity between the ligase's E3 component and specific proteins of the 19S particle.

Indexed as

Proteasome Endopeptidase ComplexSaccharomyces cerevisiae ProteinsUbiquitin-Protein LigasesEscherichia coliFungal ProteinsGlutathione TransferaseImmunoblottingLigasesPeptide HydrolasesPlasmidsProtein BindingSaccharomyces cerevisiaeTime FactorsUbiquitinsATP dependent 26S proteaseFungal ProteinsGlutathione TransferaseLigasesPeptide HydrolasesProteasome Endopeptidase ComplexSaccharomyces cerevisiae ProteinsUbiquitin-Protein LigasesUbiquitinsUBR1 protein, S cerevisiae

Identifiers

PMID10688918
PMCPMC15957
OpenAlexW1992798036

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.