5NUS

Structure of a minimal complex between p44 and p34 from Chaetomium thermophilum


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The intricate network between the p34 and p44 subunits is central to the activity of the transcription/DNA repair factor TFIIH.

Radu, L.Schoenwetter, E.Braun, C.Marcoux, J.Koelmel, W.Schmitt, D.R.Kuper, J.Cianferani, S.Egly, J.M.Poterszman, A.Kisker, C.

(2017) Nucleic Acids Res 45: 10872-10883

  • DOI: https://doi.org/10.1093/nar/gkx743
  • Primary Citation of Related Structures:  
    5NUS, 5O85, 5OBZ

  • PubMed Abstract: 

    The general transcription factor IIH (TFIIH) is a multi-protein complex and its 10 subunits are engaged in an intricate protein-protein interaction network critical for the regulation of its transcription and DNA repair activities that are so far little understood on a molecular level. In this study, we focused on the p44 and the p34 subunits, which are central for the structural integrity of core-TFIIH. We solved crystal structures of a complex formed by the p34 N-terminal vWA and p44 C-terminal zinc binding domains from Chaetomium thermophilum and from Homo sapiens. Intriguingly, our functional analyses clearly revealed the presence of a second interface located in the C-terminal zinc binding region of p34, which can rescue a disrupted interaction between the p34 vWA and the p44 RING domain. In addition, we demonstrate that the C-terminal zinc binding domain of p34 assumes a central role with respect to the stability and function of TFIIH. Our data reveal a redundant interaction network within core-TFIIH, which may serve to minimize the susceptibility to mutational impairment. This provides first insights why so far no mutations in the p34 or p44 TFIIH-core subunits have been identified that would lead to the hallmark nucleotide excision repair syndromes xeroderma pigmentosum or trichothiodystrophy.


  • Organizational Affiliation

    Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104 CNRS/Inserm/UdS, BP163, 67404 Illkirch Cedex, C.U. Strasbourg, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
p34303Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0004460
UniProt
Find proteins for G0RXV8 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0RXV8 
Go to UniProtKB:  G0RXV8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0RXV8
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
p44113Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0002690
UniProt
Find proteins for G0RZE6 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0RZE6 
Go to UniProtKB:  G0RZE6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0RZE6
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 147.056α = 90
b = 147.056β = 90
c = 87.599γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyKI-562/7-1

Revision History  (Full details and data files)

  • Version 1.0: 2017-10-18
    Type: Initial release
  • Version 1.1: 2017-11-01
    Changes: Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references