3INW

HSP90 N-TERMINAL DOMAIN with pochoxime A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Inhibition of HSP90 with pochoximes: SAR and structure-based insights.

Barluenga, S.Fontaine, J.G.Wang, C.Aouadi, K.Chen, R.Beebe, K.Neckers, L.Winssinger, N.

(2009) Chembiochem 10: 2753-2759

  • DOI: 10.1002/cbic.200900494
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The pochoximes, based on the radicicol pharmacophore, are potent inhibitors of heat shock protein 90 (HSP90) that retain their activity in vivo. Herein we report an extended library that broadly explores the structure-activity relationship (SAR) of t ...

    The pochoximes, based on the radicicol pharmacophore, are potent inhibitors of heat shock protein 90 (HSP90) that retain their activity in vivo. Herein we report an extended library that broadly explores the structure-activity relationship (SAR) of the pochoximes with four points of diversity. Several modifications were identified that afford improved cellular efficacy, new opportunities for conjugation, and further diversifications. Cocrystal structures of pochoximes A and B with HSP90 show that pochoximes bind to a different conformation of HSP90 than radicicol and provide a rationale for the enhanced affinity of the pochoximes relative to radicicol and the pochonins.


    Organizational Affiliation

    Institut de Science et d'Ingénierie Supramoleculaires, Université de Strasbourg, CNRS (UMR7006), 8 Allée Gaspard Monge, 67000 Strasbourg, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-alpha
A
228Homo 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
JZB
Query on JZB

Download SDF File 
Download CCD File 
A
(5E,9E,11E)-13-chloro-14,16-dihydroxy-3,4,7,8-tetrahydro-1H-2-benzoxacyclotetradecine-1,11(12H)-dione 11-[O-(2-oxo-2-piperidin-1-ylethyl)oxime]
C24 H29 Cl N2 O6
XNRNAVTUUGISQH-VCKBHWIVSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
JZBIC50: 39 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.183 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 68.050α = 90.00
b = 90.690β = 90.00
c = 98.750γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
ADSCdata collection
AMoREphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2009-08-13 
  • Released Date: 2010-08-18 
  • Deposition Author(s): Korndoerfer, I.P.

Revision History 

  • Version 1.0: 2010-08-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance