2M14

NMR structure of the complex between the PH domain of the Tfb1 subunit from TFIIH and Rad4


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 1.1 of the entry. See complete history

Literature

Structural and functional evidence that Rad4 competes with Rad2 for binding to the Tfb1 subunit of TFIIH in NER.

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

(2013) Nucleic Acids Res. 41: 2736-2745

  • DOI: 10.1093/nar/gks1321

  • PubMed Abstract: 
  • XPC/Rad4 (human/yeast) recruits transcription faction IIH (TFIIH) to the nucleotide excision repair (NER) complex through interactions with its p62/Tfb1 and XPB/Ssl2 subunits. TFIIH then recruits XPG/Rad2 through interactions with similar subunits an ...

    XPC/Rad4 (human/yeast) recruits transcription faction IIH (TFIIH) to the nucleotide excision repair (NER) complex through interactions with its p62/Tfb1 and XPB/Ssl2 subunits. TFIIH then recruits XPG/Rad2 through interactions with similar subunits and the two repair factors appear to be mutually exclusive within the NER complex. Here, we show that Rad4 binds the PH domain of the Tfb1 (Tfb1PH) with high affinity. Structural characterization of a Rad4-Tfb1PH complex demonstrates that the Rad4-binding interface is formed using a motif similar to one used by Rad2 to bind Tfb1PH. In vivo studies in yeast demonstrate that the N-terminal Tfb1-binding motif and C-terminal TFIIH-binding motif of Rad4 are both crucial for survival following exposure to UV irradiation. Together, these results support the hypothesis that XPG/Rad2 displaces XPC/Rad4 from the repair complex in part through interactions with the Tfb1/p62 subunit of TFIIH. The Rad4-Tfb1PH structure also provides detailed information regarding, not only the interplay of TFIIH recruitment to the NER, but also links the role of TFIIH in NER and transcription.


    Organizational Affiliation

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




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 RAD4
B
42Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RAD4
Find proteins for P14736 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P14736
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2M14 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-23
    Type: Initial release
  • Version 1.1: 2013-03-06
    Type: Database references