Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.92 kDa 
• Atom Count: 1021 
• Modelled Residue Count: 129 
• Deposited Residue Count: 169 
• Unique protein chains: 2

2GS0

NMR structure of the complex between the PH domain of the Tfb1 subunit from TFIIH and the activation domain of p53

• PDB DOI: 10.2210/pdb2GS0/pdb
• BMRB: 6225

• Classification: TRANSCRIPTION
• Organism(s): Saccharomyces cerevisiae, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-04-25 Released: 2006-10-31 
• Deposition Author(s): Di Lello, P., Jones, T.N., Nguyen, B.D., Legault, P., Omichinski, J.G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 67 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Structure of the Tfb1/p53 complex: Insights into the interaction between the p62/Tfb1 subunit of TFIIH and the activation domain of p53.

Di Lello, P., Jenkins, L.M., Jones, T.N., Nguyen, B.D., Hara, T., Yamaguchi, H., Dikeakos, J.D., Appella, E., Legault, P., Omichinski, J.G.

(2006) Mol Cell 22: 731-740

• PubMed: 16793543 
• DOI: 10.1016/j.molcel.2006.05.007
• Primary Citation of Related Structures:  
  2GS0


• PubMed Abstract: 
  

The interaction between the amino-terminal transactivation domain (TAD) of p53 and TFIIH is directly correlated with the ability of p53 to activate both transcription initiation and elongation. We have identified a region within the p53 TAD that specifically interacts with the pleckstrin homology (PH) domain of the p62 and Tfb1 subunits of human and yeast TFIIH. We have solved the 3D structure of a complex between the p53 TAD and the PH domain of Tfb1 by NMR spectroscopy. Our structure reveals that p53 forms a nine residue amphipathic alpha helix (residues 47-55) upon binding to Tfb1. In addition, we demonstrate that diphosphorylation of p53 at Ser46 and Thr55 leads to a significant enhancement in p53 binding to p62 and Tfb1. These results indicate that a phosphorylation cascade involving Ser46 and Thr55 of p53 could play an important role in the regulation of select p53 target genes.

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Organizational Affiliation: 

Département de Biochimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RNA polymerase II transcription factor B subunit 1	A	115	Saccharomyces cerevisiae	Mutation(s): 1  Gene Names: TFB1
UniProt
Find proteins for P32776 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P32776  Go to UniProtKB:  P32776

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cellular tumor antigen p53	B	54	Homo sapiens	Mutation(s): 0  Gene Names: TP53, P53
UniProt & NIH Common Fund Data Resources
Find proteins for P04637 (Homo sapiens) Explore P04637  Go to UniProtKB:  P04637
PHAROS:  P04637

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 67 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2GS0 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-04-25 
• Released Date: 2006-10-31 
Deposition Author(s): Di Lello, P., Jones, T.N., Nguyen, B.D., Legault, P., Omichinski, J.G.

Revision History  

• Version 1.0: 2006-10-31
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-20
  Changes: Database references, Derived calculations