Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 25.67 kDa 
• Atom Count: 1962 
• Residue Count: 207 
• Unique protein chains: 1

1YER

HUMAN HSP90 GELDANAMYCIN-BINDING DOMAIN, "CLOSED" CONFORMATION

• DOI: 10.2210/pdb1YER/pdb

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


• Deposited: 1997-03-25 Released: 1998-04-22 
• Deposition Author(s): Stebbins, C.E., Russo, A.A., Pavletich, N.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.244 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 

Literature

Crystal structure of an Hsp90-geldanamycin complex: targeting of a protein chaperone by an antitumor agent.

Stebbins, C.E., Russo, A.A., Schneider, C., Rosen, N., Hartl, F.U., Pavletich, N.P.

(1997) Cell 89: 239-250

• PubMed: 9108479 
• DOI: 10.1016/s0092-8674(00)80203-2
• Primary Citation of Related Structures:  
  1YET, 1YES, 1YER


• PubMed Abstract: 
  

The Hsp90 chaperone is required for the activation of several families of eukaryotic protein kinases and nuclear hormone receptors, many of which are protooncogenic and play a prominent role in cancer. The geldanamycin antibiotic has antiproliferative and antitumor effects, as it binds to Hsp90, inhibits the Hsp90-mediated conformational maturation/refolding reaction, and results in the degradation of Hsp90 substrates. The structure of the geldanamycin-binding domain of Hsp90 (residues 9-232) reveals a pronounced pocket, 15 A deep, that is highly conserved across species. Geldanamycin binds inside this pocket, adopting a compact structure similar to that of a polypeptide chain in a turn conformation. This, and the pocket's similarity to substrate-binding sites, suggest that the pocket binds a portion of the polypeptide substrate and participates in the conformational maturation/refolding reaction.

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Organizational Affiliation: 

Department of Biochemistry and Structural Biology, Cornell University Graduate School of Medical Sciences, New York, New York 10021, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HEAT SHOCK PROTEIN 90	A	228	Homo sapiens	Mutation(s): 0  Gene Names: HSP90AA1, HSP90A, HSPC1, HSPCA
Find proteins for P07900 (Homo sapiens) Explore P07900  Go to UniProtKB:  P07900
NIH Common Fund Data Resources
PHAROS:  P07900 GTEx:  ENSG00000080824

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.244 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.587	α = 90
b = 88.546	β = 90
c = 99.346	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
HKL	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-03-25 
• Released Date: 1998-04-22 
Deposition Author(s): Stebbins, C.E., Russo, A.A., Pavletich, N.P.

Revision History 

• Version 1.0: 1998-04-22
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance