1DL6

SOLUTION STRUCTURE OF HUMAN TFIIB N-TERMINAL DOMAIN

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 29 
  • Conformers Submitted: 25 
  • 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

Structure of a (Cys3His) zinc ribbon, a ubiquitous motif in archaeal and eucaryal transcription.

Chen, H.T., Legault, P., Glushka, J., Omichinski, J.G., Scott, R.A.

(2000) Protein Sci 9: 1743-1752

  • DOI: 10.1110/ps.9.9.1743
  • Primary Citation of Related Structures:  
    1DL6

  • PubMed Abstract: 

    • Transcription factor IIB (TFIIB) is an essential component in the formation of the transcription initiation complex in eucaryal and archaeal transcription. TFIIB interacts with a promoter complex containing the TATA-binding protein (TBP) to facilitate interaction with RNA polymerase II (RNA pol II) and the associated transcription factor IIF (TFIIF) ...

    Transcription factor IIB (TFIIB) is an essential component in the formation of the transcription initiation complex in eucaryal and archaeal transcription. TFIIB interacts with a promoter complex containing the TATA-binding protein (TBP) to facilitate interaction with RNA polymerase II (RNA pol II) and the associated transcription factor IIF (TFIIF). TFIIB contains a zinc-binding motif near the N-terminus that is directly involved in the interaction with RNA pol II/TFIIF and plays a crucial role in selecting the transcription initiation site. The solution structure of the N-terminal residues 2-59 of human TFIIB was determined by multidimensional NMR spectroscopy. The structure consists of a nearly tetrahedral Zn(Cys)3(His)1 site confined by type I and "rubredoxin" turns, three antiparallel beta-strands, and disordered loops. The structure is similar to the reported zinc-ribbon motifs in several transcription-related proteins from archaea and eucarya, including Pyrococcus furiosus transcription factor B (PfTFB), human and yeast transcription factor IIS (TFIIS), and Thermococcus celer RNA polymerase II subunit M (TcRPOM). The zinc-ribbon structure of TFIIB, in conjunction with the biochemical analyses, suggests that residues on the beta-sheet are involved in the interaction with RNA pol II/TFIIF, while the zinc-binding site may increase the stability of the beta-sheet.

    Organizational Affiliation: 

    Center for Metalloenzyme Studies, University of Georgia, Athens 30602-2556, USA.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRANSCRIPTION FACTOR II B (TFIIB)A58Homo sapiensMutation(s): 0 
Gene Names: GTF2B, TF2B, TFIIB
EC: 2.3.1.48
Find proteins for Q00403 (Homo sapiens)
Explore Q00403 
Go to UniProtKB:  Q00403
NIH Common Fund Data Resources
PHAROS:  Q00403
GTEx:  ENSG00000137947
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN
Download Ideal Coordinates CCD File 
 B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 29 
  • Conformers Submitted: 25 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 1DL6 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-10-18
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance