2IWS

Radicicol analogues bound to the ATP site of HSP90


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Inhibition of Hsp90 with Synthetic Macrolactones: Synthesis and Structural and Biological Evaluation of Ring and Conformational Analogs of Radicicol.

Proisy, N.Sharp, S.Y.Boxall, K.Connelly, S.Roe, S.M.Prodromou, C.Slawin, A.M.Z.Pearl, L.H.Workman, P.Moody, C.J.

(2006) Chem Biol 13: 1203

  • DOI: 10.1016/j.chembiol.2006.09.015
  • Primary Citation of Related Structures:  
    2IWU, 2IWS, 2IWX, 2CGF

  • PubMed Abstract: 
  • A series of benzo-macrolactones of varying ring size and conformation has been prepared by chemical synthesis and evaluated by structural and biological techniques. Thus, 12- to 16-membered lactones were obtained by concise routes, involving ring-clo ...

    A series of benzo-macrolactones of varying ring size and conformation has been prepared by chemical synthesis and evaluated by structural and biological techniques. Thus, 12- to 16-membered lactones were obtained by concise routes, involving ring-closing metathesis as a key step. In enzyme assays, the 13-, 15-, and 16-membered analogs are good inhibitors, suggesting that they can adopt the required conformation to fit in the ATP-binding site. This was confirmed by cocrystallization of 13-, 14-, and 15-membered lactones with the N-terminal domain of yeast Hsp90, showing that they bind similarly to the "natural" 14-membered radicicol. The most active compounds in the ATPase assays also showed the greatest growth-inhibitory potency in HCT116 human colon cancer cells and the established molecular signature of Hsp90 inhibition, i.e., depletion of client proteins with upregulation of Hsp70.


    Organizational Affiliation

    School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-DEPENDENT MOLECULAR CHAPERONE HSP82A214Saccharomyces cerevisiaeMutation(s): 0 
Find proteins for P02829 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P02829 
Go to UniProtKB:  P02829
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NP4
Query on NP4

Download CCD File 
A
(5Z)-12-CHLORO-13,15-DIHYDROXY-4,7,8,9-TETRAHYDRO-2-BENZOXACYCLOTRIDECINE-1,10(3H,11H)-DIONE
C16 H17 Cl O5
AQKZYZQONWDDLS-IWQZZHSRSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
NP4IC50:  500   nM  BindingDB
NP4IC50:  2400   nM  BindingDB
NP4Kd :  440   nM  PDBBind
NP4IC50:  850   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 
  • Space Group: P 43 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.841α = 90
b = 73.841β = 90
c = 109.135γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-30
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-22
    Changes: Data collection, Other, Refinement description