Transcription factor TFIIA as a single chain protein

Experimental Data Snapshot

  • Resolution: 2.38 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report

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Architecture of TAF11/TAF13/TBP complex suggests novel regulation properties of general transcription factor TFIID.

Gupta, K.Watson, A.A.Baptista, T.Scheer, E.Chambers, A.L.Koehler, C.Zou, J.Obong-Ebong, I.Kandiah, E.Temblador, A.Round, A.Forest, E.Man, P.Bieniossek, C.Laue, E.D.Lemke, E.A.Rappsilber, J.Robinson, C.V.Devys, D.Tora, L.Berger, I.

(2017) Elife 6

  • DOI: https://doi.org/10.7554/eLife.30395
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    General transcription factor TFIID is a key component of RNA polymerase II transcription initiation. Human TFIID is a megadalton-sized complex comprising TATA-binding protein (TBP) and 13 TBP-associated factors (TAFs). TBP binds to core promoter DNA, recognizing the TATA-box. We identified a ternary complex formed by TBP and the histone fold (HF) domain-containing TFIID subunits TAF11 and TAF13. We demonstrate that TAF11/TAF13 competes for TBP binding with TATA-box DNA, and also with the N-terminal domain of TAF1 previously implicated in TATA-box mimicry. In an integrative approach combining crystal coordinates, biochemical analyses and data from cross-linking mass-spectrometry (CLMS), we determine the architecture of the TAF11/TAF13/TBP complex, revealing TAF11/TAF13 interaction with the DNA binding surface of TBP. We identify a highly conserved C-terminal TBP-interaction domain (CTID) in TAF13, which is essential for supporting cell growth. Our results thus have implications for cellular TFIID assembly and suggest a novel regulatory state for TFIID function.

  • Organizational Affiliation

    BrisSynBio Centre, The School of Biochemistry, Faculty of Biomedical Sciences, University of Bristol, Bristol, United Kingdom.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription initiation factor IIA subunit 2,Transcription initiation factor IIA subunit 1,Transcription initiation factor IIA subunit 1209Homo sapiensMutation(s): 0 
Gene Names: GTF2A2TF2A2GTF2A1TF2A1
UniProt & NIH Common Fund Data Resources
Find proteins for P52657 (Homo sapiens)
Explore P52657 
Go to UniProtKB:  P52657
PHAROS:  P52657
GTEx:  ENSG00000140307 
Find proteins for P52655 (Homo sapiens)
Explore P52655 
Go to UniProtKB:  P52655
PHAROS:  P52655
GTEx:  ENSG00000165417 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP52655P52657
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.38 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 123.312α = 90
b = 123.312β = 90
c = 34.802γ = 120
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
XSCALEdata reduction

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
French National Research AgencyFrance--

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-29
    Type: Initial release