1BQ0

J-DOMAIN (RESIDUES 1-77) OF THE ESCHERICHIA COLI N-TERMINAL FRAGMENT (RESIDUES 1-104) OF THE MOLECULAR CHAPERONE DNAJ, NMR, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: ZERO VIOLATIONS/ENERGY (SEE PAPER *JRNL*) 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The influence of C-terminal extension on the structure of the "J-domain" in E. coli DnaJ.

Huang, K.Flanagan, J.M.Prestegard, J.H.

(1999) Protein Sci 8: 203-214

  • DOI: https://doi.org/10.1110/ps.8.1.203
  • Primary Citation of Related Structures:  
    1BQ0, 1BQZ

  • PubMed Abstract: 

    Two different recombinant constructs of the N-terminal domain in Escherichia coli DnaJ were uniformly labeled with nitrogen-15 and carbon-13. One, DnaJ(1-78), contains the complete "J-domain," and the other, DnaJ(1-104), contains both the "J-domain" and a conserved "G/F" extension at the C-terminus. The three-dimensional structures of these proteins have been determined by heteronuclear NMR experiments. In both proteins the "J-domain" adopts a compact structure consisting of a helix-turn-helix-loop-helix-turn-helix motif. In contrast, the "G/F" region in DnaJ(1-104) does not fold into a well-defined structure. Nevertheless, the "G/F" region has been found to have an effect on the packing of the helices in the "J-domain" in DnaJ(1-104). Particularly, the interhelical angles between Helix IV and other helices are significantly different in the two structures. In addition, there are some local conformational changes in the loop region connecting the two central helices. These structural differences in the "J-domain" in the presence of the "G/F" region may be related to the observation that DnaJ (1-78) is incapable of stimulating the ATPase activity of the molecular chaperone protein DnaK despite evidence that sites mediating the binding of DnaJ to DnaK are located in the 1-78 segment.


  • Organizational Affiliation

    Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNAJ103Escherichia coliMutation(s): 0 
UniProt
Find proteins for P08622 (Escherichia coli (strain K12))
Explore P08622 
Go to UniProtKB:  P08622
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08622
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: ZERO VIOLATIONS/ENERGY (SEE PAPER *JRNL*) 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-06-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations, Other
  • Version 1.4: 2024-05-22
    Changes: Data collection