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 1.2 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: 10.1110/ps.8.1.203
  • Primary Citation of Related Structures:  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" ...

    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.


    Related Citations: 
    • 1H and 15N Magnetic Resonance Assignments, Secondary Structure, and Tertiary Fold of Escherichia Coli Dnaj(1-78)
      Hill, R.B.,Flanagan, J.M.,Prestegard, J.H.
      (1995) Biochemistry 34: 5587


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNAJ
A
103Escherichia coli (strain K12)Gene Names: dnaJ (groP)
Find proteins for P08622 (Escherichia coli (strain K12))
Go to UniProtKB:  P08622
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: ZERO VIOLATIONS/ENERGY (SEE PAPER *JRNL*) 
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance