Biological Assembly 1  

 3D View: Structure | Electron Density

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 60978.87 
• Atom Count: 4282 
• Residue Count: 554 
• Unique protein chains: 1

1YUW

crystal structure of bovine hsc70(aa1-554)E213A/D214A mutant

• DOI: 10.2210/pdb1YUW/pdb

• Classification: CHAPERONE
• Organism(s): Bos taurus
• Expression System: Escherichia coli
• Mutation(s): 2 


• Deposited: 2005-02-14 Released: 2005-10-04 
• Deposition Author(s): Jiang, J., Lafer, E.M., Prasad, K., Sousa, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.297 
• R-Value Work: 0.220 

Literature

Structural basis of interdomain communication in the Hsc70 chaperone

Jiang, J., Prasad, K., Lafer, E.M., Sousa, R.

(2005) Mol.Cell 20: 513-524

• PubMed: 16307916 
• DOI: 10.1016/j.molcel.2005.09.028


• PubMed Abstract: 
  

Hsp70 family proteins are highly conserved chaperones involved in protein folding, degradation, targeting and translocation, and protein complex remodeling. They are comprised of an N-terminal nucleotide binding domain (NBD) and a C-terminal protein substrate binding domain (SBD). ATP binding to the NBD alters SBD conformation and substrate binding kinetics, but an understanding of the mechanism of interdomain communication has been hampered by the lack of a crystal structure of an intact chaperone. We report here the 2.6 angstroms structure of a functionally intact bovine Hsc70 (bHsc70) and a mutational analysis of the observed interdomain interface and the immediately adjacent interdomain linker. This analysis identifies interdomain interactions critical for chaperone function and supports an allosteric mechanism in which the interdomain linker invades and disrupts the interdomain interface when ATP binds.

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Organizational Affiliation: 

Department of Biochemistry, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas 78229, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Heat shock cognate 71 kDa protein	A	554	Bos taurus	Mutation(s): 2  Gene Names: HSPA8 (HSC70)
Find proteins for P19120 (Bos taurus) Go to Gene View: HSPA8 Go to UniProtKB:  P19120

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.297 
• R-Value Work: 0.220 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 65.694	α = 90.00
b = 50.140	β = 99.86
c = 87.156	γ = 90.00

Software Package:

Software Name	Purpose
CNS	refinement
SCALEPACK	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-02-14 
• Released Date: 2005-10-04 
• Deposition Author(s): Jiang, J., Lafer, E.M., Prasad, K., Sousa, R.

Revision History 

• Version 1.0: 2005-10-04
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-10-11
  Type: Refinement description