Macromolecule Content

• Total Structure Weight: 9842.25 
• Atom Count: 687 
• Residue Count: 89 
• Unique protein chains: 1

2D9D

Solution structure of the BAG domain (275-350) of BAG-family molecular chaperone regulator-5

• DOI: 10.2210/pdb2D9D/pdb

• Classification: CHAPERONE
• Organism(s): Homo sapiens
• Expression System: cell free protein synthesis


• Deposited: 2005-12-09 Released: 2006-12-09 
• Deposition Author(s): Hatta, R., Hayashi, F., Yoshida, M., Yokoyama, S., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function, structures with the lowest energy, structures with the least restraint violations 

Literature

The C-terminal BAG domain of BAG5 induces conformational changes of the Hsp70 nucleotide-binding domain for ADP-ATP exchange

Arakawa, A., Handa, N., Ohsawa, N., Shida, M., Kigawa, T., Hayashi, F., Shirouzu, M., Yokoyama, S.

(2010) Structure 18: 309-319

• PubMed: 20223214 
• DOI: 10.1016/j.str.2010.01.004
• Primary Citation of Related Structures:  
  3A8Y, 1UK5, 1UGO


• PubMed Abstract: 
  

ADP-ATP exchange by the molecular chaperone Hsp70 is enhanced by several cochaperones. BAG5 consists of five BAG domains and associates with the nucleotide-binding domain (NBD) of Hsp70. The overexpression of BAG5 in the cytosol reportedly disturbs Hsp70-mediated protein refolding and induces Parkinson's disease. In the present study, we found that the fifth BAG domain (BD5) of BAG5 is responsible for the interaction between Hsp70 and BAG5. We also determined the crystal structures of the BD5*NBD complex. BD5 binding caused two different types of NBD conformational changes, which both disrupted the nucleotide-binding groove. In fact, BD5 reduced the affinity of the NBD for ADP. Moreover, BD5, as well as the full-length BAG5, accelerated Hsp70-mediated refolding in an in vitro assay. Therefore, BAG5 can function as the nucleotide exchange factor of Hsp70 for the enhancement of protein refolding.

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Organizational Affiliation: 

Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
BAG family molecular chaperone regulator 5	A	89	Homo sapiens	Mutation(s): 0  Gene Names: BAG5 (KIAA0873)
Find proteins for Q9UL15 (Homo sapiens) Go to Gene View: BAG5 Go to UniProtKB:  Q9UL15

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function, structures with the lowest energy, structures with the least restraint violations 
• Olderado: 2D9D Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-12-09 
• Released Date: 2006-12-09 
• Deposition Author(s): Hatta, R., Hayashi, F., Yoshida, M., Yokoyama, S., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Revision History 

• Version 1.0: 2006-12-09
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance