5ZUI

Crystal Structure of HSP104 from Chaetomium thermophilum


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.214 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Split conformation of Chaetomium thermophilum Hsp104 disaggregase.

Inoue, Y.Hanazono, Y.Noi, K.Kawamoto, A.Kimatsuka, M.Harada, R.Takeda, K.Kita, R.Iwamasa, N.Shibata, K.Noguchi, K.Shigeta, Y.Namba, K.Ogura, T.Miki, K.Shinohara, K.Yohda, M.

(2021) Structure 

  • DOI: 10.1016/j.str.2021.02.002
  • Primary Citation of Related Structures:  
    5ZUI, 7CG3

  • PubMed Abstract: 
  • Hsp104 and its bacterial homolog ClpB form hexameric ring structures and mediate protein disaggregation. The disaggregated polypeptide is thought to thread through the central channel of the ring. However, the dynamic behavior of Hsp104 during disaggregation remains unclear ...

    Hsp104 and its bacterial homolog ClpB form hexameric ring structures and mediate protein disaggregation. The disaggregated polypeptide is thought to thread through the central channel of the ring. However, the dynamic behavior of Hsp104 during disaggregation remains unclear. Here, we reported the stochastic conformational dynamics and a split conformation of Hsp104 disaggregase from Chaetomium thermophilum (CtHsp104) in the presence of ADP by X-ray crystallography, cryo-electron microscopy (EM), and high-speed atomic force microscopy (AFM). ADP-bound CtHsp104 assembles into a 6 5 left-handed spiral filament in the crystal structure at a resolution of 2.7 Å. The unit of the filament is a hexamer of the split spiral structure. In the cryo-EM images, staggered and split hexameric rings were observed. Further, high-speed AFM observations showed that a substrate addition enhanced the conformational change and increased the split structure's frequency. Our data suggest that split conformation is an off-pathway state of CtHsp104 during disaggregation.


    Organizational Affiliation

    Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heat Shock Protein 104A764Chaetomium thermophilumMutation(s): 0 
Gene Names: CTHT_0022720
Find proteins for G0S4G4 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0S4G4 
Go to UniProtKB:  G0S4G4
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.214 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 131.182α = 90
b = 131.182β = 90
c = 137.042γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-19
    Type: Initial release
  • Version 1.1: 2019-10-16
    Changes: Data collection
  • Version 1.2: 2021-04-28
    Changes: Database references