6DV5

Oligomeric complex of a Hsp27 24-mer at 3.6 A resolution

• PDB DOI: https://doi.org/10.2210/pdb6DV5/pdb

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


• Deposited: 2018-06-22 Released: 2019-06-26 
• Deposition Author(s): Aguda, A.H., Brayer, G.D.
• Funding Organization(s): Canadian Institutes of Health Research (CIHR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.58 Å
• R-Value Free: 0.242 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 

Starting Model: experimental

Literature

Structure-Guided Discovery of Ivermectin as an Inhibitor of Heat Shock Protein-27 Phosphorylation and Depolymerization.

Nappi, L., Aguda, A.H., Al Nakouzi, N., Lelj Garolla, B., Beraldi, E., Lallous, N., Thi, M., Moore, S., Battsogt, D., Stoffeliene, S., Ban, F., Nguyen, N.T., Saxena, N., Dueva, E., Yamazaki, T., Zoubeidi, A., Cherkasov, A., Brayer, G.D., Gleave, M.

To be published.

Biological Assembly 1  

Global Symmetry: Tetrahedral - T  (Explore in 3D)
Global Stoichiometry: Homo 24-mer - A24 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 547.45 kDa 
• Atom Count: 32,356 
• Modelled Residue Count: 4,036 
• Deposited Residue Count: 4,920 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat shock protein beta-1	A [auth B], B [auth A], C [auth D], D [auth F], E [auth H], F [auth J], G [auth L], H [auth N], I [auth P], J [auth R], K [auth T], L [auth V], M [auth X], N [auth C], O [auth E], P [auth G], Q [auth I], R [auth K], S [auth M], T [auth O], U [auth Q], V [auth S], W [auth U], X [auth W]	205	Homo sapiens	Mutation(s): 0  Gene Names: HSPB1, HSP27, HSP28
UniProt & NIH Common Fund Data Resources
Find proteins for P04792 (Homo sapiens) Explore P04792  Go to UniProtKB:  P04792
PHAROS:  P04792 GTEx:  ENSG00000106211

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.58 Å
• R-Value Free: 0.242 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 324.7	α = 90
b = 324.7	β = 90
c = 198.761	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-06-26 
Deposition Author(s): Aguda, A.H., Brayer, G.D.

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Funding Organization	Location	Grant Number
Canadian Institutes of Health Research (CIHR)	Canada	FRN # 111082

Revision History  

• Version 1.0: 2019-06-26
  Type: Initial release
  
• Version 1.1: 2020-01-08
  Changes: Author supporting evidence
• Version 1.2: 2023-10-11
  Changes: Data collection, Database references, Refinement description