2LOX

NMR structure of the complex between the PH domain of the Tfb1 subunit from TFIIH and Rad2


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and functional characterization of interactions involving the Tfb1 subunit of TFIIH and the NER factor Rad2.

Lafrance-Vanasse, J.Arseneault, G.Cappadocia, L.Chen, H.T.Legault, P.Omichinski, J.G.

(2012) Nucleic Acids Res. 40: 5739-5750

  • DOI: 10.1093/nar/gks194

  • PubMed Abstract: 
  • The general transcription factor IIH (TFIIH) plays crucial roles in transcription as part of the pre-initiation complex (PIC) and in DNA repair as part of the nucleotide excision repair (NER) machinery. During NER, TFIIH recruits the 3'-endonuclease ...

    The general transcription factor IIH (TFIIH) plays crucial roles in transcription as part of the pre-initiation complex (PIC) and in DNA repair as part of the nucleotide excision repair (NER) machinery. During NER, TFIIH recruits the 3'-endonuclease Rad2 to damaged DNA. In this manuscript, we functionally and structurally characterized the interaction between the Tfb1 subunit of TFIIH and Rad2. We show that deletion of either the PH domain of Tfb1 (Tfb1PH) or several segments of the Rad2 spacer region yield yeast with enhanced sensitivity to UV irradiation. Isothermal titration calorimetry studies demonstrate that two acidic segments of the Rad2 spacer bind to Tfb1PH with nanomolar affinity. Structure determination of a Rad2-Tfb1PH complex indicates that Rad2 binds to TFIIH using a similar motif as TFIIEα uses to bind TFIIH in the PIC. Together, these results provide a mechanistic bridge between the role of TFIIH in transcription and DNA repair.


    Organizational Affiliation

    Département de Biochimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II transcription factor B subunit 1
A
119Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: TFB1
Find proteins for P32776 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32776
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA repair protein RAD2
B
52Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RAD2
EC: 3.1.-.-
Find proteins for P07276 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P07276
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LOX Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-02-15
    Type: Initial release
  • Version 1.1: 2012-03-21
    Type: Database references
  • Version 1.2: 2012-07-11
    Type: Database references