4EFU

Hsp90 Alpha N-terminal Domain in Complex with an Inhibitor 6-Hydroxy-3-(3-methyl-benzyl)-1H-indazole-5-carboxylic acid benzyl-methyl-amide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Fragment-based discovery of hydroxy-indazole-carboxamides as novel small molecule inhibitors of Hsp90

Buchstaller, H.-P.Eggenweiler, H.-M.Sirrenberg, C.Graedler, U.Musil, D.Hoppe, E.Zimmermann, A.Schwartz, H.Maerz, J.Bomke, J.Wegener, A.Wolf, M.

(2012) Bioorg.Med.Chem.Lett. 22: 4396-4403

  • DOI: 10.1016/j.bmcl.2012.04.121
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Inhibitors of the Hsp90 molecular chaperone are showing considerable promise as potential molecular therapeutic agents for the treatment of cancer. Here we describe the identification of novel small molecular weight inhibitors of Hsp90 using a fragme ...

    Inhibitors of the Hsp90 molecular chaperone are showing considerable promise as potential molecular therapeutic agents for the treatment of cancer. Here we describe the identification of novel small molecular weight inhibitors of Hsp90 using a fragment based approach. Fragments were selected by docking, tested in a biochemical assay and the confirmed hits were crystallized. Information gained from X-ray structures of these fragments and other chemotypes was used to drive the fragment evolution process. Optimization of these high μM binders resulted in 3-benzylindazole derivatives with significantly improved affinity and anti-proliferative effects in different human cancer cell lines.


    Organizational Affiliation

    Merck Serono Research, Merck KGaA, Frankfurter Straße 250, D-64293 Darmstadt, Germany. hans-peter.buchstaller@merckgroup.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-alpha
A
229Homo 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
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EFU
Query on EFU

Download SDF File 
Download CCD File 
A
N-benzyl-6-hydroxy-N-methyl-3-(3-methylbenzyl)-1H-indazole-5-carboxamide
C24 H23 N3 O2
JTCGRDMMRLTULM-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
EFUIC50: 250 nM (92) BINDINGDB
EFUIC50: 250 nM BINDINGMOAD
EFUIC50: 250 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.204 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.588α = 90.00
b = 90.623β = 90.00
c = 98.788γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
CrystalCleardata collection
SCALEPACKdata scaling
HKL-2000data reduction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-06-27
    Type: Initial release