Literature DB >> 12207689

The unfolding story of the Escherichia coli Hsp70 DnaK: is DnaK a holdase or an unfoldase?

Sergey V Slepenkov1, Stephan N Witt.   

Abstract

We discuss recent experiments that have illuminated individual steps in the reaction cycle of the Escherichia coli Hsp70 molecular chaperone DnaK. Using this new information, we compare two distinctly different global mechanisms of action--holding versus unfolding--and argue that the available evidence suggests that DnaK is an unfoldase.

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Year:  2002        PMID: 12207689     DOI: 10.1046/j.1365-2958.2002.03093.x

Source DB:  PubMed          Journal:  Mol Microbiol        ISSN: 0950-382X            Impact factor:   3.501


  37 in total

1.  Coordinating assembly and export of complex bacterial proteins.

Authors:  Rachael L Jack; Grant Buchanan; Alexandra Dubini; Kostas Hatzixanthis; Tracy Palmer; Frank Sargent
Journal:  EMBO J       Date:  2004-09-23       Impact factor: 11.598

2.  Transient interactions of a slow-folding protein with the Hsp70 chaperone machinery.

Authors:  Ashok Sekhar; Margarita Santiago; Hon Nam Lam; Jung Ho Lee; Silvia Cavagnero
Journal:  Protein Sci       Date:  2012-06-11       Impact factor: 6.725

3.  Hsp70 ATPase Modulators as Therapeutics for Alzheimer's and other Neurodegenerative Diseases.

Authors:  Umesh K Jinwal; John Koren; John C O'Leary; Jeffrey R Jones; Jose F Abisambra; Chad A Dickey
Journal:  Mol Cell Pharmacol       Date:  2010-01-01

4.  Effect of hsp70 chaperone on the folding and misfolding of polypeptides modeling an elongating protein chain.

Authors:  Neşe Kurt; Senapathy Rajagopalan; Silvia Cavagnero
Journal:  J Mol Biol       Date:  2005-11-08       Impact factor: 5.469

5.  The allosteric transition in DnaK probed by infrared difference spectroscopy. Concerted ATP-induced rearrangement of the substrate binding domain.

Authors:  Fernando Moro; Vanesa Fernández-Sáiz; Arturo Muga
Journal:  Protein Sci       Date:  2005-12-29       Impact factor: 6.725

Review 6.  Remodeling protein complexes: insights from the AAA+ unfoldase ClpX and Mu transposase.

Authors:  Briana M Burton; Tania A Baker
Journal:  Protein Sci       Date:  2005-08       Impact factor: 6.725

7.  Hsp70 chaperones accelerate protein translocation and the unfolding of stable protein aggregates by entropic pulling.

Authors:  Paolo De Los Rios; Anat Ben-Zvi; Olga Slutsky; Abdussalam Azem; Pierre Goloubinoff
Journal:  Proc Natl Acad Sci U S A       Date:  2006-04-10       Impact factor: 11.205

8.  GroEL stimulates protein folding through forced unfolding.

Authors:  Zong Lin; Damian Madan; Hays S Rye
Journal:  Nat Struct Mol Biol       Date:  2008-03-02       Impact factor: 15.369

Review 9.  Chaperone effects on prion and nonprion aggregates.

Authors:  Eugene G Rikhvanov; Nina V Romanova; Yury O Chernoff
Journal:  Prion       Date:  2007-10-06       Impact factor: 3.931

10.  GroEL-induced topological dislocation of a substrate protein β-sheet core: a solution EPR spin-spin distance study.

Authors:  Rikard Owenius; Anngelica Jarl; Bengt-Harald Jonsson; Uno Carlsson; Per Hammarström
Journal:  J Chem Biol       Date:  2010-04-11
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