1UYG

Human Hsp90-alpha with 8-(2,5-dimethoxy-benzyl)-2-fluoro-9H-purin-6-ylamine

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Structure-Activity Relationships in Purine-Based Inhibitor Binding to Hsp90 Isoforms

Wright, L., Barril, X., Dymock, B., Sheridan, L., Surgenor, A., Beswick, M., Drysdale, M., Collier, A., Massey, A., Davies, N., Fink, A., Fromont, C., Aherne, W., Boxall, K., Sharp, S., Workman, P., Hubbard, R.E.

(2004) Chem Biol 11: 775

  • DOI: https://doi.org/10.1016/j.chembiol.2004.03.033
  • Primary Citation of Related Structures:  
    1UY6, 1UY7, 1UY8, 1UY9, 1UYC, 1UYD, 1UYE, 1UYF, 1UYG, 1UYH, 1UYI, 1UYK, 1UYL, 1UYM

  • PubMed Abstract: 

    • Inhibition of the ATPase activity of the chaperone protein HSP90 is a potential strategy for treatment of cancers. We have determined structures of the HSP90alpha N-terminal domain complexed with the purine-based inhibitor, PU3, and analogs with enhanced potency both in enzyme and cell-based assays ...

    Inhibition of the ATPase activity of the chaperone protein HSP90 is a potential strategy for treatment of cancers. We have determined structures of the HSP90alpha N-terminal domain complexed with the purine-based inhibitor, PU3, and analogs with enhanced potency both in enzyme and cell-based assays. The compounds induce upregulation of HSP70 and downregulation of the known HSP90 client proteins Raf-1, CDK4, and ErbB2, confirming that the molecules inhibit cell growth by a mechanism dependent on HSP90 inhibition. We have also determined the first structure of the N-terminal domain of HSP90beta, complexed with PU3. The structures allow a detailed rationale to be developed for the observed affinity of the PU3 class of compounds for HSP90 and also provide a structural framework for design of compounds with improved binding affinity and drug-like properties.

    Organizational Affiliation: 

    Vernalis (R&D) Ltd., Granta Park, Abington, Cambridge CB1 6GB, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HEAT SHOCK PROTEIN HSP 90-ALPHA236Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1, HSP90A, HSPC1, HSPCA
EC: 3.6.4.10
UniProt & NIH Common Fund Data Resources
Find proteins for P07900 (Homo sapiens)
Explore P07900 
Go to UniProtKB:  P07900
PHAROS:  P07900
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07900
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PU2
Query on PU2
Download Ideal Coordinates CCD File 
B [auth A]8-(2,5-DIMETHOXY-BENZYL)-2-FLUORO-9H-PURIN-6-YLAMINE
C14 H14 F N5 O2
MWHAHELTVGJGFJ-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
PU2 Binding MOAD:  1UYG IC50: 5.35e+4 (nM) from 1 assay(s)
PDBBind:  1UYG IC50: 5.35e+4 (nM) from 1 assay(s)
BindingDB:  1UYG IC50: 5.35e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.651α = 90
b = 90.806β = 90
c = 98.723γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
d*TREKdata reduction
d*TREKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-01
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-07-05
    Changes: Data collection