1HX1

CRYSTAL STRUCTURE OF A BAG DOMAIN IN COMPLEX WITH THE HSC70 ATPASE DOMAIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of a Bag/Hsc70 complex: convergent functional evolution of Hsp70 nucleotide exchange factors.

Sondermann, H.Scheufler, C.Schneider, C.Hohfeld, J.Hartl, F.U.Moarefi, I.

(2001) Science 291: 1553-1557

  • DOI: 10.1126/science.291.5508.1553

  • PubMed Abstract: 
  • Bag (Bcl2-associated athanogene) domains occur in a class of cofactors of the eukaryotic chaperone 70-kilodalton heat shock protein (Hsp70) family. Binding of the Bag domain to the Hsp70 adenosine triphosphatase (ATPase) domain promotes adenosine 5'- ...

    Bag (Bcl2-associated athanogene) domains occur in a class of cofactors of the eukaryotic chaperone 70-kilodalton heat shock protein (Hsp70) family. Binding of the Bag domain to the Hsp70 adenosine triphosphatase (ATPase) domain promotes adenosine 5'-triphosphate-dependent release of substrate from Hsp70 in vitro. In a 1.9 angstrom crystal structure of a complex with the ATPase of the 70-kilodalton heat shock cognate protein (Hsc70), the Bag domain forms a three-helix bundle, inducing a conformational switch in the ATPase that is incompatible with nucleotide binding. The same switch is observed in the bacterial Hsp70 homolog DnaK upon binding of the structurally unrelated nucleotide exchange factor GrpE. Thus, functional convergence has allowed proteins with different architectures to trigger a conserved conformational shift in Hsp70 that leads to nucleotide exchange.


    Organizational Affiliation

    Department of Cellular Biochemistry, Max-Planck-Institut für Biochemie, D-82152 Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock 70 kDa protein 8
A
400Bos taurusGene Names: HSPA8 (HSC70)
Find proteins for P19120 (Bos taurus)
Go to Gene View: HSPA8
Go to UniProtKB:  P19120
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BAG family molecular chaperone regulator 1
B
114Homo sapiensGene Names: BAG1 (HAP)
Find proteins for Q99933 (Homo sapiens)
Go to Gene View: BAG1
Go to UniProtKB:  Q99933
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRS
Query on TRS

Download SDF File 
Download CCD File 
A
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
TRIS BUFFER
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.234 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 116.570α = 90.00
b = 40.780β = 114.84
c = 129.260γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DMphasing
DMmodel building
SOLVEphasing
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-03-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-06-20
    Type: Database references, Structure summary