Biological Assembly 1  

Global Symmetry: Dihedral - D3  (3D View)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 157.4 kDa 
• Atom Count: 9,345 
• Modelled Residue Count: 1,115 
• Deposited Residue Count: 1,344 
• Unique protein chains: 1

 3Q6M

Crystal Structure of Human MC-HSP90 in C2221 Space Group

• PDB DOI:  https://doi.org/10.2210/pdb3Q6M/pdb

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


• Deposited: 2011-01-03 Released: 2011-06-01 
• Deposition Author(s): Lee, C.C., Lin, T.W., Ko, T.P., Wang, A.H.-J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.252 
• R-Value Work: 0.209 
• R-Value Observed: 0.211 

Literature

The hexameric structures of human heat shock protein 90

Lee, C.C., Lin, T.W., Ko, T.P., Wang, A.H.-J.

(2011) PLoS One 6: e19961-e19961

• PubMed: 21647436 
• DOI: https://doi.org/10.1371/journal.pone.0019961
• Primary Citation of Related Structures:  
  3Q6M, 3Q6N


• PubMed Abstract: 
  

The human 90-kDa heat shock protein (HSP90) functions as a dimeric molecular chaperone. HSP90 identified on the cell surface has been found to play a crucial role in cancer invasion and metastasis, and has become a validated anti-cancer target for drug development. It has been shown to self-assemble into oligomers upon heat shock or divalent cations treatment, but the functional role of the oligomeric states in the chaperone cycle is not fully understood.

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Organizational Affiliation: 

Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat shock protein HSP 90-alpha	A, B, C	448	Homo sapiens	Mutation(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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	D [auth A], E [auth B], F [auth C]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.252 
• R-Value Work: 0.209 
• R-Value Observed: 0.211 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 162.702	α = 90
b = 304.553	β = 90
c = 87.624	γ = 90

Software Package:

Software Name	Purpose
MOLREP	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-06-01 
Deposition Author(s): Lee, C.C., Lin, T.W., Ko, T.P., Wang, A.H.-J.

Revision History  

• Version 1.0: 2011-06-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2014-03-05
  Changes: Database references