4BQG

structure of HSP90 with an inhibitor bound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery of Nms-E973 as Novel, Selective and Potent Inhibitor of Heat Shock Protein 90 (Hsp90).

Brasca, M.G.Mantegani, S.Amboldi, N.Bindi, S.Caronni, D.Casale, E.Ceccarelli, W.Colombo, N.De Ponti, A.Donati, D.Ermoli, A.Fachin, G.Felder, E.R.Ferguson, R.D.Fiorelli, C.Guanci, M.Isacchi, A.Pesenti, E.Polucci, P.Riceputi, L.Sola, F.Visco, C.Zuccotto, F.Fogliatto, G.

(2013) Bioorg.Med.Chem. 21: 7047

  • DOI: 10.1016/j.bmc.2013.09.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Novel small molecule inhibitors of heat shock protein 90 (Hsp90) were discovered with the help of a fragment based drug discovery approach (FBDD) and subsequent optimization with a combination of structure guided design, parallel synthesis and applic ...

    Novel small molecule inhibitors of heat shock protein 90 (Hsp90) were discovered with the help of a fragment based drug discovery approach (FBDD) and subsequent optimization with a combination of structure guided design, parallel synthesis and application of medicinal chemistry principles. These efforts led to the identification of compound 18 (NMS-E973), which displayed significant efficacy in a human ovarian A2780 xenograft tumor model, with a mechanism of action confirmed in vivo by typical modulation of known Hsp90 client proteins, and with a favorable pharmacokinetic and safety profile.


    Organizational Affiliation

    Nerviano Medical Sciences S.r.l., Oncology, Viale Pasteur 10, 20014 Nerviano, MI, Italy. Electronic address: gabriella.brasca@nervianoms.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HSP90AA1 PROTEIN
A
230Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1 (HSP90A, HSPC1, HSPCA)
Find proteins for P07900 (Homo sapiens)
Go to Gene View: HSP90AA1
Go to UniProtKB:  P07900
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
50Q
Query on 50Q

Download SDF File 
Download CCD File 
A
5-(3,4-dichloro-phenoxy)-benzene-1,3-diol
C12 H8 Cl2 O3
MACRIRNSUBEWEK-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
50QKd: 600 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.200 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.807α = 90.00
b = 90.346β = 90.00
c = 98.471γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2013-10-23
    Type: Initial release
  • Version 1.1: 2013-10-30
    Type: Database references
  • Version 1.2: 2017-06-28
    Type: Data collection