Evidence map›Paper›PMID 22990239›Full record

ArticleThe EMBO journal2012

Metazoan Hsp70 machines use Hsp110 to power protein disaggregation.

Heike Rampelt, Janine Kirstein-Miles, Nadinath B Nillegoda, Kang Chi, Sebastian R Scholz, Richard I Morimoto, Bernd Bukau

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 189 papers.

0numbers the graph read from it
0cells of the map it votes in
189citing papers in PubMed
11.7field-weighted citation impact, top 1% 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

189 citing papers in PubMed, 319 citations in OpenAlex.

  1. From aggregate structure to disease trajectory: the role of the proteostasis network.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
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  9. Competing chaperone pathways in α-synuclein disaggregation and aggregation dynamics.Protein science : a publication of the Protein Society · 2025
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129 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

7 authors at 2 institutions in 2 countries.

Heike RampeltCenter for Molecular Biology of the University of Heidelberg and German Cancer Research Center, DKFZ-ZMBH Alliance, Heidelberg, Germany.
Janine Kirstein-Miles
Nadinath B Nillegoda
Kang Chi
Sebastian R Scholz
Richard I Morimoto
Bernd Bukau
German Cancer Research Center · DENorthwestern University · US

Funding

C. elegans Model for Neurodegenerative Diseases of AgingR37AG026647 · NIA · NORTHWESTERN UNIVERSITY · PI MORIMOTO, RICHARD I · 2010 to 2019
$3.9M
NIA NIH HHS R37 AG026647
6 · The paper itself

Abstract

Accumulation of aggregation-prone misfolded proteins disrupts normal cellular function and promotes ageing and disease. Bacteria, fungi and plants counteract this by solubilizing and refolding aggregated proteins via a powerful cytosolic ATP-dependent bichaperone system, comprising the AAA+ disaggregase Hsp100 and the Hsp70-Hsp40 system. Metazoa, however, lack Hsp100 disaggregases. We show that instead the Hsp110 member of the Hsp70 superfamily remodels the human Hsp70-Hsp40 system to efficiently disaggregate and refold aggregates of heat and chemically denatured proteins in vitro and in cell extracts. This Hsp110 effect relies on nucleotide exchange, not on ATPase activity, implying ATP-driven chaperoning is not required. Knock-down of nematode Caenorhabditis elegans Hsp110, but not an unrelated nucleotide exchange factor, compromises dissolution of heat-induced protein aggregates and severely shortens lifespan after heat shock. We conclude that in metazoa, Hsp70-Hsp40 powered by Hsp110 nucleotide exchange represents the crucial disaggregation machinery that reestablishes protein homeostasis to counteract protein unfolding stress.

Indexed as

Protein MultimerizationAdenosine TriphosphateAnimalsCaenorhabditis elegansFluorescent Antibody TechniqueGreen Fluorescent ProteinsHeat-Shock ResponseHSP110 Heat-Shock ProteinsHSP40 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsHumansHydrolysisInclusion BodiesLuciferasesProtein DenaturationSaccharomyces cerevisiae ProteinsAdenosine Triphosphateenhanced green fluorescent proteinGreen Fluorescent ProteinsHSP110 Heat-Shock ProteinsHSP40 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsLuciferasesSaccharomyces cerevisiae Proteins

Identifiers

PMID22990239
PMCPMC3492728
OpenAlexW2125465720

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.