Biological Assembly 1  

 3D View: Structure | Electron Density

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 53262.82 
• Atom Count: 2518 
• Residue Count: 420 
• Unique protein chains: 2
• Unique nucleic acid chains: 2

4L0Y

Crystal structure of Runx1 and Ets1 bound to TCR alpha promoter (crystal form 1)

• DOI: 10.2210/pdb4L0Y/pdb
• NDB: NA2485

• Classification: TRANSCRIPTION/DNA
• Organism(s): Mus musculus, Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2013-06-01 Released: 2014-03-26 
• Deposition Author(s): Tahirov, T.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.245 
• R-Value Work: 0.225 

Literature

Structural basis of Ets1 activation by Runx1.

Shrivastava, T., Mino, K., Babayeva, N.D., Baranovskaya, O.I., Rizzino, A., Tahirov, T.H.

(2014) Leukemia 28: 2040-2048

• PubMed: 24646888 
• DOI: 10.1038/leu.2014.111
• Primary Citation of Related Structures:  
  4L18, 4L0Z


• PubMed Abstract: 
  

Runx1 is required for definitive hematopoiesis and is well known for its frequent chromosomal translocations and point mutations in leukemia. Runx1 regulates a variety of genes via Ets1 activation on an Ets1•Runx1 composite DNA sequence. The structural basis of such regulation remains unresolved. To address this problem, we determined the crystal structure of the ternary complex containing Runx1(1-242) and Ets1(296-441) bound to T-cell receptor alpha (TCRα) enhancer DNA. In the crystal, an Ets1-interacting domain of Runx1 is bound to the Ets1 DNA-binding domain and displaced an entire autoinhibitory module of Ets1, revealing a novel mechanism of Ets1 activation. The DNA-binding and transcriptional studies with a variety of structure-guided Runx1 mutants confirmed a critical role of direct Ets1•Runx1 interaction in Ets1 activation. More importantly, the discovered mechanism provides a plausible explanation for how the Ets1•Runx1 interaction effectively activates not only a wild-type Ets1, but also a highly inhibited phosphorylated form of Ets1.

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Organizational Affiliation: 

Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Runt-related transcription factor 1	A	242	Mus musculus	Mutation(s): 0  Gene Names: Runx1 (Aml1, Cbfa2, Pebp2ab)
Find proteins for Q03347 (Mus musculus) Go to UniProtKB:  Q03347

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Protein C-ets-1	B	146	Homo sapiens	Mutation(s): 0  Gene Names: ETS1 (EWSR2)
Find proteins for P14921 (Homo sapiens) Go to Gene View: ETS1 Go to UniProtKB:  P14921

Entity ID: 3
Molecule	Chains	Length	Organism
5'-D(*GP*GP*AP*AP*GP*CP*CP*AP*CP*AP*TP*CP*CP*TP*CP*T)-3'	C	16	Homo sapiens

Entity ID: 4
Molecule	Chains	Length	Organism
5'-D(*CP*AP*GP*AP*GP*GP*AP*TP*GP*TP*GP*GP*CP*TP*TP*C)-3'	D	16	Homo sapiens

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.245 
• R-Value Work: 0.225 
• Space Group: C 2 2 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 102.622	α = 90.00
b = 138.945	β = 90.00
c = 98.439	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
ADSC	data collection
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-06-01 
• Released Date: 2014-03-26 
• Deposition Author(s): Tahirov, T.H.

Revision History 

• Version 1.0: 2014-03-26
  Type: Initial release
• Version 1.1: 2014-04-02
  Type: Database references
• Version 1.2: 2014-10-22
  Type: Database references