6PQM

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:  

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Alkaline phosphatase,Chaperone protein DnaJ 2 fusion
A
94Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Escherichia coli (strain K12)
This entity is chimeric
Mutation(s): 0 
Gene Names: dnaJ2, phoA
EC: 3.1.3.1
Find proteins for Q56237 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q56237
Find proteins for P00634 (Escherichia coli (strain K12))
Go to UniProtKB:  P00634
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report or Ramachandran Plots



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
    Type: Data collection, Database references
  • Version 1.2: 2020-01-01
    Type: Author supporting evidence