Evidence map›Paper›PMID 24412063›Full record

ArticleMolecular cell2014

The intrinsically disordered Sem1 protein functions as a molecular tether during proteasome lid biogenesis.

Robert J Tomko, Mark Hochstrasser

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Plasticity in the structure and assembly of proteasomes.The Journal of biological chemistry · 2026
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  13. Fungal COP9 signalosome assembly requires connection of two trimeric intermediates for integration of intrinsic deneddylase.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  14. Review
  15. CRISPR/Cas9-Targeted Disruption of Two Highly HomologousInternational journal of molecular sciences · 2023
    Article
  16. Article
  17. Article
  18. A context-dependent and disordered ubiquitin-binding motif.Cellular and molecular life sciences : CMLS · 2022
    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

2 authors at 2 institutions in 1 country.

Robert J TomkoDepartment of Molecular Biophysics and Biochemistry, Yale University, 266 Whitney Avenue, New Haven, CT 06520-8114, USA.
Mark HochstrasserDepartment of Molecular Biophysics and Biochemistry, Yale University, 266 Whitney Avenue, New Haven, CT 06520-8114, USA. Electronic address: mark.hochstrasser@yale.edu.
Whitney Museum of American Art · USYale University · US

Funding

Function and Assembly of Eukaryotic ProteasomesR01GM083050 · NIGMS · YALE UNIVERSITY · PI HOCHSTRASSER, MARK W · 2008 to 2019
$3.8M
NIGMS NIH HHS GM083050NIGMS NIH HHS R01 GM083050
6 · The paper itself

Abstract

The intrinsically disordered yeast protein Sem1 (DSS1 in mammals) participates in multiple protein complexes, including the proteasome, but its role(s) within these complexes is uncertain. We report that Sem1 enforces the ordered incorporation of subunits Rpn3 and Rpn7 into the assembling proteasome lid. Sem1 uses conserved acidic segments separated by a flexible linker to grasp Rpn3 and Rpn7. The same segments are used for protein binding in other complexes, but in the proteasome lid they are uniquely deployed for recognizing separate polypeptides. We engineered TEV protease-cleavage sites into Sem1 to show that the tethering function of Sem1 is important for the biogenesis and integrity of the Rpn3-Sem1-Rpn7 ternary complex but becomes dispensable once the ternary complex incorporates into larger lid precursors. Thus, although Sem1 is a stoichiometric component of the mature proteasome, it has a distinct, chaperone-like function specific to early stages of proteasome assembly.

Indexed as

Amino Acid SequenceBinding SitesModels, BiologicalMolecular Sequence DataProteasome Endopeptidase ComplexSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence AlignmentProteasome Endopeptidase ComplexRPN3 protein, S cerevisiaeRpn7 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsSEM1 protein, S cerevisiae

Identifiers

PMID24412063
PMCPMC3947554
OpenAlexW2031531340

What OpenQuestion holds

Textmetadata
LicenceTDM
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.