6PSI

Structural Basis for Client Recognition and Activity of Hsp40 Chaperones


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for client recognition and activity of Hsp40 chaperones.

Jiang, Y.Rossi, P.Kalodimos, C.G.

(2019) Science 365: 1313-1319

  • DOI: 10.1126/science.aax1280
  • Primary Citation of Related Structures:  
    6PQ2, 6PPT, 6PQM, 6PQE, 6PRQ, 6PRP, 6PRI, 6PRJ, 6PSI

  • PubMed Abstract: 
  • Hsp70 and Hsp40 chaperones work synergistically in a wide range of biological processes including protein synthesis, membrane translocation, and folding. We used nuclear magnetic resonance spectroscopy to determine the solution structure and dynamic ...

    Hsp70 and Hsp40 chaperones work synergistically in a wide range of biological processes including protein synthesis, membrane translocation, and folding. We used nuclear magnetic resonance spectroscopy to determine the solution structure and dynamic features of an Hsp40 in complex with an unfolded client protein. Atomic structures of the various binding sites in the client complexed to the binding domains of the Hsp40 reveal the recognition pattern. Hsp40 engages the client in a highly dynamic fashion using a multivalent binding mechanism that alters the folding properties of the client. Different Hsp40 family members have different numbers of client-binding sites with distinct sequence selectivity, providing additional mechanisms for activity regulation and function modification. Hsp70 binding to Hsp40 displaces the unfolded client. The activity of Hsp40 is altered in its complex with Hsp70, further regulating client binding and release.


    Organizational Affiliation

    Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA. babis.kalodimos@stjude.org.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chaperone protein DnaJ 2AC280Thermus thermophilus HB8Mutation(s): 0 
Gene Names: dnaJ2TTHA1489
Find proteins for Q56237 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q56237 
Go to UniProtKB:  Q56237
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Alkaline phosphataseB471Escherichia coliMutation(s): 0 
Gene Names: 
EC: 3.1.3.1
Find proteins for P00634 (Escherichia coli (strain K12))
Explore P00634 
Go to UniProtKB:  P00634
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • OLDERADO: 6PSI Olderado

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States5R35GM122462-04

Revision History 

  • Version 1.0: 2019-09-18
    Type: Initial release
  • Version 1.1: 2019-10-23
    Changes: Data collection, Database references
  • Version 1.2: 2020-01-01
    Changes: Author supporting evidence