Biological Assembly 1  

 3D View: Structure | Electron Density

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - ABC 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Electron Density

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 109126.49 
• Atom Count: 6417 
• Residue Count: 775 
• Unique protein chains: 2
• Unique nucleic acid chains: 2

1K78

Pax5(1-149)+Ets-1(331-440)+DNA

• DOI: 10.2210/pdb1K78/pdb
• NDB: 1K78

• Classification: TRANSCRIPTION/DNA
• Organism(s): Homo sapiens, Mus musculus
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2001-10-18 Released: 2002-01-04 
• Deposition Author(s): Garvie, C.W., Hagman, J., Wolberger, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.260 
• R-Value Work: 0.227 

Literature

Structural studies of Ets-1/Pax5 complex formation on DNA.

Garvie, C.W., Hagman, J., Wolberger, C.

(2001) Mol.Cell 8: 1267-1276

• PubMed: 11779502 
• Primary Citation of Related Structures:  
  1K7A, 1K79


• PubMed Abstract: 
  

Pax5 regulates the B cell-specific expression of the mb-1 gene together with members of the Ets family of transcriptional activators. The Ets proteins on their own bind poorly to the Pax5/Ets binding site, but can be recruited to the site by cooperative interactions with Pax5. The structure of the ETS domain of Ets-1 and the paired domain of Pax5 bound to DNA reveals the molecular details of the selective recruitment of different Ets proteins by Pax5. Comparison with structures of Ets-1 alone bound to both high- and low-affinity DNA sites reveals that Pax5 alters the Ets-1 contacts with DNA. The ability of one protein to alter the DNA sequence-specific contacts of another provides a general mechanism for combinatorial regulation of transcription.

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Organizational Affiliation: 

Department of Biophysics and Biophysical Chemistry, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
Paired Box Protein Pax5	A, E, I	149	Homo sapiens	Mutation(s): 0  Gene Names: PAX5
Find proteins for Q02548 (Homo sapiens) Go to Gene View: PAX5 Go to UniProtKB:  Q02548

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details
C-ets-1 Protein	B, F	110	Mus musculus	Mutation(s): 0  Gene Names: Ets1 (Ets-1)
Find proteins for P27577 (Mus musculus) Go to UniProtKB:  P27577

Entity ID: 1
Molecule	Chains	Length	Organism
Pax5/Ets Binding Site on the mb-1 promoter	C,G	27	N/A

Entity ID: 2
Molecule	Chains	Length	Organism
Pax5/Ets Binding Site on the mb-1 promoter	D,H	27	N/A

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.260 
• R-Value Work: 0.227 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 77.840	α = 90.00
b = 89.750	β = 90.00
c = 170.740	γ = 90.00

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-10-18 
• Released Date: 2002-01-04 
• Deposition Author(s): Garvie, C.W., Hagman, J., Wolberger, C.

Revision History 

• Version 1.0: 2002-01-04
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance