ArticleQRB discovery2020
Theory of Allosteric Regulation in Hsp70 Molecular Chaperones.
Article in QRB discovery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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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.
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.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- The dance of proteostasis and metabolism: Unveiling the caloristatic controlling switch.Cell stress & chaperones · 2024Review
- Tandem repeats of highly bioluminescent NanoLuc are refolded noncanonically by the Hsp70 machinery.Protein science : a publication of the Protein Society · 2024Article
- A novel and unique ATP hydrolysis to AMP by a human Hsp70 Binding immunoglobin protein (BiP).Protein science : a publication of the Protein Society · 2022Article
- Conformational equilibria in allosteric control of Hsp70 chaperones.Molecular cell · 2021Article
- Intermediates in allosteric equilibria of DnaK-ATP interactions with substrate peptides.Acta crystallographica. Section D, Structural biology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author at 1 institution in 1 country.
Funding
Abstract
Heat-shock proteins of 70 kDa (Hsp70s) are ubiquitous molecular chaperones that function in protein folding as well as other vital cellular processes. They bind and hydrolyze ATP in a nucleotide-binding domain (NBD) to control the binding and release of client polypeptides in a substrate-binding domain (SBD). However, the molecular mechanism for this allosteric action has remained unclear. Here, we develop and experimentally quantify a theoretical model for Hsp70 allostery based on equilibria among Hsp70 conformational states. We postulate that, when bound to ATP, Hsp70 is in equilibrium between a restraining state (R) that restricts ATP hydrolysis and binds peptides poorly, if at all, and a stimulating state (S) that hydrolyzes ATP relatively rapidly and has high intrinsic substrate affinity but rapid binding kinetics; after the hydrolysis to ADP, NBD and SBD disengage into an uncoupled state (U) that binds peptide substrates tightly, but now with slow kinetics of exchange.
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Registered trials
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.