2BYH

3-(5-chloro-2,4-dihydroxyphenyl)-pyrazole-4-carboxamides as Inhibitors of the Hsp90 Molecular Chaperone


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

3-(5-Chloro-2,4-Dihydroxyphenyl)-Pyrazole-4-Carboxamides as Inhibitors of the Hsp90 Molecular Chaperone.

Brough, P.A.Barril, X.Beswick, M.Dymock, B.W.Drysdale, M.J.Wright, L.Grant, K.Massey, A.Surgenor, A.Workman, P.

(2005) Bioorg Med Chem Lett 15: 5197

  • DOI: 10.1016/j.bmcl.2005.08.091
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Information from X-ray crystal structures of Hsp90 inhibitors bound to the human Hsp90 molecular chaperone was used to assist in the design of 3-(5-chloro-2,4-dihydroxyphenyl)-pyrazole-4-carboxamides as novel inhibitors of Hsp90. Accessing an extra interaction with the protein via Phe138 gave a significant increase in binding potency compared to similar analogues that do not make this interaction ...

    Information from X-ray crystal structures of Hsp90 inhibitors bound to the human Hsp90 molecular chaperone was used to assist in the design of 3-(5-chloro-2,4-dihydroxyphenyl)-pyrazole-4-carboxamides as novel inhibitors of Hsp90. Accessing an extra interaction with the protein via Phe138 gave a significant increase in binding potency compared to similar analogues that do not make this interaction.


    Organizational Affiliation

    Vernalis Ltd, Granta Park, Great Abington, Cambridge CB1 6GB, UK. p.brough@vernalis.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEAT SHOCK PROTEIN HSP90-ALPHAA235Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1HSP90AHSPC1HSPCA
Find proteins for P07900 (Homo sapiens)
Explore P07900 
Go to UniProtKB:  P07900
NIH Common Fund Data Resources
PHAROS  P07900
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2D7
Query on 2D7

Download CCD File 
A
N-(4-ACETYLPHENYL)-5-(5-CHLORO-2,4-DIHYDROXYPHENYL)-1H-PYRAZOLE-4-CARBOXAMIDE
C18 H14 Cl N3 O4
BTTFXKUTBNGQTP-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2D7IC50 :  258   nM  PDBBind
2D7IC50:  258   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.585α = 90
b = 44.26β = 115.61
c = 54.4γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
d*TREKdata reduction
d*TREKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-10-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance