3BMY

Discovery of Benzisoxazoles as Potent Inhibitors of Chaperone Hsp90


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Discovery of benzisoxazoles as potent inhibitors of chaperone heat shock protein 90.

Gopalsamy, A.Shi, M.Golas, J.Vogan, E.Jacob, J.Johnson, M.Lee, F.Nilakantan, R.Petersen, R.Svenson, K.Chopra, R.Tam, M.S.Wen, Y.Ellingboe, J.Arndt, K.Boschelli, F.

(2008) J Med Chem 51: 373-375

  • DOI: 10.1021/jm701385c
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Heat shock protein 90 (Hsp90) is a molecular chaperone that is responsible for activating many signaling proteins and is a promising target in tumor biology. We have identified small-molecule benzisoxazole derivatives as Hsp90 inhibitors. Crystallogr ...

    Heat shock protein 90 (Hsp90) is a molecular chaperone that is responsible for activating many signaling proteins and is a promising target in tumor biology. We have identified small-molecule benzisoxazole derivatives as Hsp90 inhibitors. Crystallographic studies show that these compounds bind in the ATP binding pocket interacting with the Asp93. Structure based optimization led to the identification of potent analogues, such as 13, with good biochemical profiles.


    Organizational Affiliation

    Chemical and Screening Sciences, Wyeth Research, Pearl River, NY 10965, USA. gopalsa@wyeth.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-alphaA226Homo 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
CXZ
Query on CXZ

Download CCD File 
A
4-chloro-6-{5-[(2-morpholin-4-ylethyl)amino]-1,2-benzisoxazol-3-yl}benzene-1,3-diol
C19 H20 Cl N3 O4
JLIRVZVVCCIAKG-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CXZIC50:  30   nM  BindingDB
CXZIC50 :  30   nM  PDBBind
CXZIC50:  30   nM  BindingDB
CXZIC50:  30   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.721α = 90
b = 42.462β = 102.22
c = 54.333γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SERGUIdata collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-07-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-04-15
    Changes: Data collection, Database references, Source and taxonomy