1BGQ

RADICICOL BOUND TO THE ATP BINDING SITE OF THE N-TERMINAL DOMAIN OF THE YEAST HSP90 CHAPERONE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for inhibition of the Hsp90 molecular chaperone by the antitumor antibiotics radicicol and geldanamycin.

Roe, S.M.Prodromou, C.O'Brien, R.Ladbury, J.E.Piper, P.W.Pearl, L.H.

(1999) J Med Chem 42: 260-266

  • DOI: 10.1021/jm980403y
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The cellular activity of several regulatory and signal transduction proteins, which depend on the Hsp90 molecular chaperone for folding, is markedly decreased by geldanamycin and by radicicol (monorden). We now show that these unrelated compounds bot ...

    The cellular activity of several regulatory and signal transduction proteins, which depend on the Hsp90 molecular chaperone for folding, is markedly decreased by geldanamycin and by radicicol (monorden). We now show that these unrelated compounds both bind to the N-terminal ATP/ADP-binding domain of Hsp90, with radicicol displaying nanomolar affinity, and both inhibit the inherent ATPase activity of Hsp90 which is essential for its function in vivo. Crystal structure determinations of Hsp90 N-terminal domain complexes with geldanamycin and radicicol identify key aspects of their nucleotide mimicry and suggest a rational basis for the design of novel antichaperone drugs.


    Related Citations: 
    • Identification and Structural Characterization of the ATP/Adp-Binding Site in the Hsp90 Molecular Chaperone
      Prodromou, C., Roe, S.M., O'Brien, R., Ladbury, J.E., Piper, P.W., Pearl, L.H.
      (1997) Cell 90: 65
    • Expression and Crystallization of the Yeast Hsp82 Chaperone, and Preliminary X-Ray Diffraction Studies of the Amino-Terminal Domain
      Prodromou, C., Piper, P.W., Pearl, L.H.
      (1996) Proteins 25: 517

    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, Gower Street, London WC1E 6BT, UK.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEAT SHOCK PROTEIN 90
A
225Saccharomyces cerevisiaeMutation(s): 0 
Find proteins for P02829 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P02829
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RDC
Query on RDC

Download CCD File 
A
RADICICOL
C18 H17 Cl O6
WYZWZEOGROVVHK-GTMNPGAYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
RDCKd:  2.700000047683716   nM  Binding MOAD
RDCKd :  2.700000047683716   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 
  • Space Group: P 43 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.94α = 90
b = 73.94β = 90
c = 110.86γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
CCP4data scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance