1YTF

YEAST TFIIA/TBP/DNA COMPLEX

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.235 

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This is version 1.3 of the entry. See complete history. 


Literature

Crystal structure of a yeast TFIIA/TBP/DNA complex.

Tan, S., Hunziker, Y., Sargent, D.F., Richmond, T.J.

(1996) Nature 381: 127-134

  • DOI: https://doi.org/10.1038/381127a0
  • Primary Citation of Related Structures:  
    1YTF

  • PubMed Abstract: 

    The X-ray crystal structure of the transcription factor IIA (TFIIA) in complex with the TATA-box-binding protein (TBP) and TATA-element DNA is presented at 2.5 A resolution. TFIIA is composed of a beta-barrel and a four-helix bundle motif that together have a boot-like appearance. The beta-barrel extends the TBP beta-sheet and bridges over the DNA major groove immediately upstream of the TATA box. The four-helix bundle contributes substantially to the surface of the complex available for interaction with additional transcription factors.

    • Organizational Affiliation: 

    Institut für Molekularbiologie und Biophysik, ETH-Hönggerberg, Zürich, Switzerland.


Macromolecules

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (TATA BINDING PROTEIN (TBP))C [auth A]180Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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UniProt GroupP13393
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (TRANSCRIPTION FACTOR IIA - TOA1N SUBUNIT)D [auth B]53Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (TRANSCRIPTION FACTOR IIA - TOA1C SUBUNIT)E [auth C]79Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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UniProt GroupP32773
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (TRANSCRIPTION FACTOR IIA - TOA2 SUBUNIT)F [auth D]121Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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UniProt GroupP32774
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Entity ID: 1
MoleculeChains LengthOrganismImage
DNA (5'-D(*TP*GP*TP*AP*TP*GP*TP*AP*TP*AP*TP*AP*AP*AP*AP*C)-3')A [auth E]16N/A
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Entity ID: 2
MoleculeChains LengthOrganismImage
DNA (5'-D(*GP*TP*TP*TP*TP*AP*TP*AP*TP*AP*CP*AP*TP*AP*CP*A)-3')B [auth F]16N/A
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.235 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.15α = 90
b = 93.05β = 90
c = 117.83γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-06-20
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-14
    Changes: Data collection, Database references