5UC4

Hsp90b N-terminal domain with inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.166 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-guided design of an Hsp90 beta N-terminal isoform-selective inhibitor.

Khandelwal, A.Kent, C.N.Balch, M.Peng, S.Mishra, S.J.Deng, J.Day, V.W.Liu, W.Subramanian, C.Cohen, M.Holzbeierlein, J.M.Matts, R.Blagg, B.S.J.

(2018) Nat Commun 9: 425-425

  • DOI: 10.1038/s41467-017-02013-1
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The 90 kDa heat shock protein (Hsp90) is a molecular chaperone responsible for folding proteins that are directly associated with cancer progression. Consequently, inhibition of the Hsp90 protein folding machinery results in a combinatorial attack on ...

    The 90 kDa heat shock protein (Hsp90) is a molecular chaperone responsible for folding proteins that are directly associated with cancer progression. Consequently, inhibition of the Hsp90 protein folding machinery results in a combinatorial attack on numerous oncogenic pathways. Seventeen small-molecule inhibitors of Hsp90 have entered clinical trials, all of which bind the Hsp90 N-terminus and exhibit pan-inhibitory activity against all four Hsp90 isoforms. pan-Inhibition of Hsp90 appears to be detrimental as toxicities have been reported alongside induction of the pro-survival heat shock response. The development of Hsp90 isoform-selective inhibitors represents an alternative approach towards the treatment of cancer that may limit some of the detriments. Described herein is a structure-based approach to design isoform-selective inhibitors of Hsp90β, which induces the degradation of select Hsp90 clients without concomitant induction of Hsp90 levels. Together, these initial studies support the development of Hsp90β-selective inhibitors as a method to overcome the detriments associated with pan-inhibition.


    Organizational Affiliation

    Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Malott Hall 4048, Lawrence, KS, 66045, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-beta
A, B, C, D
220Homo sapiensMutation(s): 0 
Gene Names: HSP90AB1 (HSP90B, HSPC2, HSPCB)
Find proteins for P08238 (Homo sapiens)
Go to Gene View: HSP90AB1
Go to UniProtKB:  P08238
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, C
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
83S
Query on 83S

Download SDF File 
Download CCD File 
A, B, C, D
5-Hydroxy-4-(isoindoline-2-carbonyl)-2-isopropylbenzaldehyde
C19 H19 N O3
SVCSVCKMYMUSOV-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A, B, C, D
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.166 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 129.251α = 90.00
b = 129.251β = 90.00
c = 106.724γ = 120.00
Software Package:
Software NamePurpose
HKL-3000data scaling
PHENIXrefinement
PHASERphasing
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-01-17
    Type: Initial release
  • Version 1.1: 2018-03-07
    Type: Database references