3VD0

structure of p73 DNA binding domain tetramer modulates p73 transactivation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of p73 DNA-binding domain tetramer modulates p73 transactivation.

Ethayathulla, A.S.Tse, P.W.Monti, P.Nguyen, S.Inga, A.Fronza, G.Viadiu, H.

(2012) Proc.Natl.Acad.Sci.USA 109: 6066-6071

  • DOI: 10.1073/pnas.1115463109
  • Primary Citation of Related Structures:  3VD1, 3VD2

  • PubMed Abstract: 
  • The transcription factor p73 triggers developmental pathways and overlaps stress-induced p53 transcriptional pathways. How p53-family response elements determine and regulate transcriptional specificity remains an unsolved problem. In this work, we h ...

    The transcription factor p73 triggers developmental pathways and overlaps stress-induced p53 transcriptional pathways. How p53-family response elements determine and regulate transcriptional specificity remains an unsolved problem. In this work, we have determined the first crystal structures of p73 DNA-binding domain tetramer bound to response elements with spacers of different length. The structure and function of the adaptable tetramer are determined by the distance between two half-sites. The structures with zero and one base-pair spacers show compact p73 DNA-binding domain tetramers with large tetramerization interfaces; a two base-pair spacer results in DNA unwinding and a smaller tetramerization interface, whereas a four base-pair spacer hinders tetramerization. Functionally, p73 is more sensitive to spacer length than p53, with one base-pair spacer reducing 90% of transactivation activity and longer spacers reducing transactivation to basal levels. Our results establish the quaternary structure of the p73 DNA-binding domain required as a scaffold to promote transactivation.


    Organizational Affiliation

    Laboratory of Structural Biochemistry, Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive 0378, La Jolla, CA 92093, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tumor protein p73
A, B, C, D, I, J, K, L
210Homo sapiensGene Names: TP73 (P73)
Find proteins for O15350 (Homo sapiens)
Go to Gene View: TP73
Go to UniProtKB:  O15350
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*AP*GP*GP*CP*AP*TP*GP*CP*CP*TP*G)-3')E,F,G,H,M,N,O,P12N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, D, I, J, K, L
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.235 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 82.090α = 90.00
b = 104.521β = 96.18
c = 122.994γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data reduction
HKL-2000data collection
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-18
    Type: Initial release
  • Version 1.1: 2012-07-25
    Type: Database references
  • Version 1.2: 2014-10-08
    Type: Structure summary