1Q1H

An extended winged helix domain in general transcription factor E/IIE alpha


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.321 
  • R-Value Work: 0.315 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An Extended Winged Helix Domain in General Transcription Factor E/IIE alpha

Meinhart, A.Blobel, J.Cramer, P.

(2003) J.Biol.Chem. 278: 48267-48274

  • DOI: 10.1074/jbc.M307874200

  • PubMed Abstract: 
  • Initiation of eukaryotic mRNA transcription requires melting of promoter DNA with the help of the general transcription factors TFIIE and TFIIH. Here we define a conserved and functionally essential N-terminal domain in TFE, the archaeal homolog of t ...

    Initiation of eukaryotic mRNA transcription requires melting of promoter DNA with the help of the general transcription factors TFIIE and TFIIH. Here we define a conserved and functionally essential N-terminal domain in TFE, the archaeal homolog of the large TFIIE subunit alpha. X-ray crystallography shows that this TFE domain adopts a winged helix-turn-helix (winged helix) fold, extended by specific alpha-helices at the N and C termini. Although the winged helix fold is often found in DNA-binding proteins, we show that TFE is not a typical DNA-binding winged helix protein, because its putative DNA-binding face shows a negatively charged groove and an unusually long wing, and because the domain lacks DNA-binding activity in vitro. The groove and a conserved hydrophobic surface patch on the additional N-terminal alpha-helix may, however, allow for interactions with other general transcription factors and RNA polymerase. Homology modeling shows that the TFE domain is conserved in TFIIE alpha, including the potential functional surfaces.


    Organizational Affiliation

    Institute of Biochemistry, Gene Center, University of Munich, Feodor-Lynen-Strasse 25, 81377 Munich, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transcription Factor E
A
110Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)Gene Names: tfe
Find proteins for Q980M5 (Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Go to UniProtKB:  Q980M5
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.321 
  • R-Value Work: 0.315 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 66.100α = 90.00
b = 66.100β = 90.00
c = 92.700γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SOLVEphasing
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-12-09
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance