6G3S

Structure of tellurium-centred Anderson-Evans polyoxotungstate (TEW) bound to the nucleotide binding domain of HSP70. Second structure of two TEW-HSP70 structures deposited.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.217 

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Literature

The crystallization additive hexatungstotellurate promotes the crystallization of the HSP70 nucleotide binding domain into two different crystal forms.

Mac Sweeney, A.Chambovey, A.Wicki, M.Muller, M.Artico, N.Lange, R.Bijelic, A.Breibeck, J.Rompel, A.

(2018) PLoS One 13: e0199639-e0199639

  • DOI: 10.1371/journal.pone.0199639
  • Primary Citation of Related Structures:  
    6G3S, 6G3R

  • PubMed Abstract: 
  • The use of the tellurium-centered Anderson-Evans polyoxotungstate [TeW6O24]6- (TEW) as a crystallization additive has been described. Here, we present the use of TEW as an additive in the crystallization screening of the nucleotide binding domain (NBD) of HSP70 ...

    The use of the tellurium-centered Anderson-Evans polyoxotungstate [TeW6O24]6- (TEW) as a crystallization additive has been described. Here, we present the use of TEW as an additive in the crystallization screening of the nucleotide binding domain (NBD) of HSP70. Crystallization screening of the HSP70 NBD in the absence of TEW using a standard commercial screen resulted in a single crystal form. An identical crystallization screen of the HSP70 NBD in the presence of TEW resulted in both the "TEW free" crystal form and an additional crystal form with a different crystal packing. TEW binding was observed in both crystal forms, either as a well-defined molecule or in overlapping alternate positions suggesting translational disorder. The structures were solved by both molecular replacement and single wavelength anomalous diffraction (SAD) using the anomalous signal of a single bound molecule of TEW. This study adds one more example of TEW binding to a protein and influencing its crystallization behavior.


    Organizational Affiliation

    University of Vienna, Faculty of Chemistry, Department of Biophysical Chemistry, Vienna, Austria.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heat shock 70 kDa protein 1AA380Homo sapiensMutation(s): 0 
Gene Names: HSPA1AHSP72HSPA1HSX70
UniProt & NIH Common Fund Data Resources
Find proteins for P0DMV8 (Homo sapiens)
Explore P0DMV8 
Go to UniProtKB:  P0DMV8
PHAROS:  P0DMV8
Protein Feature View
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
ADP BindingDB:  6G3S Kd: min: 320, max: 324 (nM) from 2 assay(s)
IC50: 280 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.217 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.9α = 90
b = 70.967β = 90
c = 99.295γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Austrian Science FundAustriaP27534

Revision History  (Full details and data files)

  • Version 1.0: 2018-10-17
    Type: Initial release