5AQZ

HSP72 with adenosine-derived inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Exploiting Protein Conformational Change to Optimize Adenosine-Derived Inhibitors of Hsp70.

Cheeseman, M.D.Westwood, I.M.Barbeau, O.Rowlands, M.G.Dobson, S.Jones, A.M.Jeganathan, F.Burke, R.Kadi, N.Workman, P.Collins, I.Van Montfort, R.L.M.Jones, K.

(2016) J.Med.Chem. 59: 4625

  • DOI: 10.1021/acs.jmedchem.5b02001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • HSP70 is a molecular chaperone and a key component of the heat-shock response. Because of its proposed importance in oncology, this protein has become a popular target for drug discovery, efforts which have as yet brought little success. This study d ...

    HSP70 is a molecular chaperone and a key component of the heat-shock response. Because of its proposed importance in oncology, this protein has become a popular target for drug discovery, efforts which have as yet brought little success. This study demonstrates that adenosine-derived HSP70 inhibitors potentially bind to the protein with a novel mechanism of action, the stabilization by desolvation of an intramolecular salt-bridge which induces a conformational change in the protein, leading to high affinity ligands. We also demonstrate that through the application of this mechanism, adenosine-derived HSP70 inhibitors can be optimized in a rational manner.


    Organizational Affiliation

    Cancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research , London SW7 3RP, U.K.,Division of Structural Biology, The Institute of Cancer Research , London SW7 3RP, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEAT SHOCK 70 KDA PROTEIN 1A
A
394Homo sapiensMutation(s): 0 
Gene Names: HSPA1A (HSP72, HSPA1, HSX70)
Find proteins for P0DMV8 (Homo sapiens)
Go to Gene View: HSPA1A
Go to UniProtKB:  P0DMV8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SGV
Query on SGV

Download SDF File 
Download CCD File 
A
SANGIVAMYCIN
4-amino-7-beta-D-ribofuranosyl-7H-pyrrolo[2,3-d]pyrimidine-5-carboxamide
C12 H15 N5 O5
OBZJZDHRXBKKTJ-JTFADIMSSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
SGVKd: 3236 - 3300 nM (88) BINDINGDB
SGVKd: 3300 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 47.938α = 90.00
b = 89.504β = 90.00
c = 96.920γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
Aimlessdata scaling
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-05-11
    Type: Initial release
  • Version 1.1: 2016-06-08
    Type: Database references