3FT8

Structure of HSP90 bound with a noval fragment.

• PDB DOI: https://doi.org/10.2210/pdb3FT8/pdb

• Classification: CHAPERONE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-01-12 Released: 2009-06-30 
• Deposition Author(s): Barker, J.B., Cheng, R.K.Y., Palan, S., Felicetti, B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.298 
• R-Value Work: 0.235 
• R-Value Observed: 0.238 

Literature

Fragment-based identification of Hsp90 inhibitors.

Barker, J.J., Barker, O., Boggio, R., Chauhan, V., Cheng, R.K., Corden, V., Courtney, S.M., Edwards, N., Falque, V.M., Fusar, F., Gardiner, M., Hamelin, E.M., Hesterkamp, T., Ichihara, O., Jones, R.S., Mather, O., Mercurio, C., Minucci, S., Montalbetti, C.A., Muller, A., Patel, D., Phillips, B.G., Varasi, M., Whittaker, M., Winkler, D., Yarnold, C.J.

(2009) ChemMedChem 4: 963-966

• PubMed: 19301319 
• DOI: https://doi.org/10.1002/cmdc.200900011
• Primary Citation of Related Structures:  
  3FT5, 3FT8


• PubMed Abstract: 
  

  Heat shock protein 90 (Hsp90) plays a key role in stress response and protection of the cell against the effects of mutation. Herein we report the identification of an Hsp90 inhibitor identified by fragment screening using a high-concentration biochemical assay, as well as its optimisation by in silico searching coupled with a structure-based drug design (SBDD) approach.

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Organizational Affiliation: 

Evotec, 114 Milton Park, Abingdon, Oxfordshire, OX10 4SA UK.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 28.32 kDa 
• Atom Count: 1,822 
• Modelled Residue Count: 206 
• Deposited Residue Count: 249 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat shock protein HSP 90-alpha	A	249	Homo sapiens	Mutation(s): 0  Gene Names: HSP90AA1, HSP90A, HSPC1, HSPCA
UniProt & NIH Common Fund Data Resources
Find proteins for P07900 (Homo sapiens) Explore P07900  Go to UniProtKB:  P07900
PHAROS:  P07900 GTEx:  ENSG00000080824

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MOJ	B [auth A]	(5E,7S)-2-amino-7-(4-fluoro-2-pyridin-3-ylphenyl)-4-methyl-7,8-dihydroquinazolin-5(6H)-one oxime C20 H18 F N5 O KYIXUSLGFINPTC-WVFAEZDRSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
MOJ	PDBBind:  3FT8	IC50: 30 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.298 
• R-Value Work: 0.235 
• R-Value Observed: 0.238 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.464	α = 90
b = 90.973	β = 90
c = 99.138	γ = 90

Software Package:

Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-30 
Deposition Author(s): Barker, J.B., Cheng, R.K.Y., Palan, S., Felicetti, B.

Revision History  

• Version 1.0: 2009-06-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations