Evidence map›Paper›PMID 28894176›Full record

ArticleScientific reports2017

Overlapping and Specific Functions of the Hsp104 N Domain Define Its Role in Protein Disaggregation.

Jungsoon Lee, Nuri Sung, Jonathan M Mercado, Corey F Hryc, Changsoo Chang, Sukyeong Lee, Francis T F Tsai

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

13 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Differential Interactions of Molecular Chaperones and Yeast Prions.Journal of fungi (Basel, Switzerland) · 2022
    Review
  11. Article
  12. Article
  13. Basic mechanism of the autonomous ClpG disaggregase.The Journal of biological chemistry
    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 2 institutions in 1 country.

Jungsoon LeeVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Nuri SungVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Jonathan M MercadoDepartment of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Corey F HrycGraduate Program in Structural and Computational Biology and Molecular Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Changsoo ChangStructural Biology Center, Biosciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, 60439, USA.
Sukyeong LeeVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA. slee@bcm.edu.
Francis T F TsaiVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA. ftsai@bcm.edu.
Baylor College of Medicine · USArgonne National Laboratory · US

Funding

Structural and Mechanistic Studies of the Mitochondrial Protein Folding MachineryR01GM111084 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI TSAI, FRANCIS T.F. · 2015 to 2018
$1.4M
Structure and Mechanism of a Prion-remodeling FactorR01GM104980 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI TSAI, FRANCIS T.F. · 2013 to 2016
$1.3M
NIGMS NIH HHS R01 GM104980NIGMS NIH HHS R01 GM111084
6 · The paper itself

Abstract

Hsp104 is a ring-forming protein disaggregase that rescues stress-damaged proteins from an aggregated state. To facilitate protein disaggregation, Hsp104 cooperates with Hsp70 and Hsp40 chaperones (Hsp70/40) to form a bi-chaperone system. How Hsp104 recognizes its substrates, particularly the importance of the N domain, remains poorly understood and multiple, seemingly conflicting mechanisms have been proposed. Although the N domain is dispensable for protein disaggregation, it is sensitive to point mutations that abolish the function of the bacterial Hsp104 homolog in vitro, and is essential for curing yeast prions by Hsp104 overexpression in vivo. Here, we present the crystal structure of an N-terminal fragment of Saccharomyces cerevisiae Hsp104 with the N domain of one molecule bound to the C-terminal helix of the neighboring D1 domain. Consistent with mimicking substrate interaction, mutating the putative substrate-binding site in a constitutively active Hsp104 variant impairs the recovery of functional protein from aggregates. We find that the observed substrate-binding defect can be rescued by Hsp70/40 chaperones, providing a molecular explanation as to why the N domain is dispensable for protein disaggregation when Hsp70/40 is present, yet essential for the dissolution of Hsp104-specific substrates, such as yeast prions, which likely depends on a direct N domain interaction.

Indexed as

Binding SitesCrystallography, X-RayDNA Mutational AnalysisHeat-Shock ProteinsModels, MolecularMolecular ChaperonesProtein BindingProtein ConformationSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsHeat-Shock ProteinsHsP104 protein, S cerevisiaeMolecular ChaperonesSaccharomyces cerevisiae Proteins

Identifiers

PMID28894176
PMCPMC5593927
OpenAlexW2753429640

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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.