1BPR | pdb_00001bpr

NMR STRUCTURE OF THE SUBSTRATE BINDING DOMAIN OF DNAK, MINIMIZED AVERAGE STRUCTURE

• PDB DOI: https://doi.org/10.2210/pdb1BPR/pdb

• Classification: MOLECULAR CHAPERONE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1998-08-11 Released: 1999-03-02 
• Deposition Author(s): Wang, H., Kurochkin, A.V., Pang, Y., Hu, W., Flynn, G.C., Zuiderweg, E.R.P.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: TOTAL ENERGY 

Literature

NMR solution structure of the 21 kDa chaperone protein DnaK substrate binding domain: a preview of chaperone-protein interaction.

Wang, H., Kurochkin, A.V., Pang, Y., Hu, W., Flynn, G.C., Zuiderweg, E.R.

(1998) Biochemistry 37: 7929-7940

• PubMed: 9609686 
• DOI: https://doi.org/10.1021/bi9800855
• Primary Citation Related Structures: 
  1BPR, 2BPR


• PubMed Abstract: 
  

  The solution structure of the 21 kDa substrate-binding domain of the Escherichia coli Hsp70-chaperone protein DnaK (DnaK 386-561) has been determined to a precision of 1.00 A (backbone of the beta-domain) from 1075 experimental restraints obtained from multinuclear, multidimensional NMR experiments. The domain is observed to bind to its own C-terminus and offers a preview of the interaction of this chaperone with other proteins. The bound protein region is tightly held at a single amino acid position (a leucyl residue) that is buried in a deep pocket lined with conserved hydrophobic residues. A second hydrophobic binding site was identified using paramagnetically labeled peptides. It is located in a region close to the N-terminus of the domain and may constitute the allosteric region that links substrate-binding affinity with nucleotide binding in the Hsp70 chaperones.

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Organizational Affiliation: 
• Biophysics Research Division, Department of Biological Chemistry, The University of Michigan, Ann Arbor 48109, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 20.94 kDa 
• Atom Count: 1,325 
• Modeled Residue Count: 173 
• Deposited Residue Count: 191 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNAK	A	191	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A6Y8 (Escherichia coli (strain K12)) Explore P0A6Y8  Go to UniProtKB:  P0A6Y8

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: TOTAL ENERGY 

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-03-02 
Deposition Author(s): Wang, H., Kurochkin, A.V., Pang, Y., Hu, W., Flynn, G.C., Zuiderweg, E.R.P.

Revision History  

• Version 1.0: 1999-03-02
  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: Data collection, Database references, Derived calculations, Other
• Version 1.4: 2024-05-22
  Changes: Data collection