3DOM

Crystal Structure of the complex between Tfb5 and the C-terminal domain of Tfb2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for group A trichothiodystrophy

Kainov, D.E.Vitorino, M.Cavarelli, J.Poterszman, A.Egly, J.M.

(2008) Nat.Struct.Mol.Biol. 15: 980-984

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Patients with the rare neurodevelopmental repair syndrome known as group A trichothiodystrophy (TTD-A) carry mutations in the gene encoding the p8 subunit of the transcription and DNA repair factor TFIIH. Here we describe the crystal structure of a m ...

    Patients with the rare neurodevelopmental repair syndrome known as group A trichothiodystrophy (TTD-A) carry mutations in the gene encoding the p8 subunit of the transcription and DNA repair factor TFIIH. Here we describe the crystal structure of a minimal complex between Tfb5, the yeast ortholog of p8, and the C-terminal domain of Tfb2, the yeast p52 subunit of TFIIH. The structure revealed that these two polypeptides adopt the same fold, forming a compact pseudosymmetric heterodimer via a beta-strand addition and coiled coils interactions between terminal alpha-helices. Furthermore, Tfb5 protects a hydrophobic surface in Tfb2 from solvent, providing a rationale for the influence of p8 in the stabilization of p52 and explaining why mutations that weaken p8-p52 interactions lead to a reduced intracellular TFIIH concentration and a defect in nucleotide-excision repair, a common feature of TTD cells.


    Related Citations: 
    • Solution structure and self-association properties of the p8 TFIIH subunit responsible for trichothiodystrophy
      Vitorino, M.,Coin, F.,Zlobinskaya, O.,Atkinson, R.A.,Moras, D.,Egly, J.M.,Potesrzman, A.,Kieffer, B.
      (2007) J.Mol.Biol. 368: 473


    Organizational Affiliation

    lnstitut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, BP 163, 67404 Illkirch Cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II transcription factor B subunit 2
A, C
108Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TFB2
Find proteins for Q02939 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q02939
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II transcription factor B subunit 5
B, D
71Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TFB5
Find proteins for Q3E7C1 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q3E7C1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 37.583α = 90.00
b = 103.593β = 90.00
c = 114.345γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
DENZOdata reduction
REFMACrefinement
RESOLVEphasing
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-08-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description