2AS5

Structure of the DNA binding domains of NFAT and FOXP2 bound specifically to DNA.

• PDB DOI:  https://doi.org/10.2210/pdb2AS5/pdb
• NAKB: 2AS5

• Classification: Transcription/DNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3), Escherichia coli
• Mutation(s): Yes 


• Deposited: 2005-08-22 Released: 2006-08-08 
• Deposition Author(s): Wu, Y., Stroud, J.C., Borde, M., Bates, D.L., Guo, L., Han, A., Rao, A., Chen, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.287 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 

Literature

FOXP3 Controls Regulatory T Cell Function through Cooperation with NFAT.

Wu, Y., Borde, M., Heissmeyer, V., Feuerer, M., Lapan, A.D., Stroud, J.C., Bates, D.L., Guo, L., Han, A., Ziegler, S.F., Mathis, D., Benoist, C., Chen, L., Rao, A.

(2006) Cell 126: 375-387

• PubMed: 16873067 
• DOI: https://doi.org/10.1016/j.cell.2006.05.042
• Primary Citation of Related Structures:  
  2AS5


• PubMed Abstract: 
  

Antigen stimulation of immune cells activates the transcription factor NFAT, a key regulator of T cell activation and anergy. NFAT forms cooperative complexes with the AP-1 family of transcription factors and regulates T cell activation-associated genes. Here we show that regulatory T cell (Treg) function is mediated by an analogous cooperative complex of NFAT with the forkhead transcription factor FOXP3, a lineage specification factor for Tregs. The crystal structure of an NFAT:FOXP2:DNA complex reveals an extensive protein-protein interaction interface between NFAT and FOXP2. Structure-guided mutations of FOXP3, predicted to progressively disrupt its interaction with NFAT, interfere in a graded manner with the ability of FOXP3 to repress expression of the cytokine IL2, upregulate expression of the Treg markers CTLA4 and CD25, and confer suppressor function in a murine model of autoimmune diabetes. Thus by switching transcriptional partners, NFAT converts the acute T cell activation program into the suppressor program of Tregs.

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Organizational Affiliation: 

Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, CO 80309, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 113.02 kDa 
• Atom Count: 7,821 
• Modelled Residue Count: 824 
• Deposited Residue Count: 844 
• Unique protein chains: 2
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Nuclear factor of activated T-cells, cytoplasmic 2	E [auth N], F [auth M]	287	Homo sapiens	Mutation(s): 0  Gene Names: NFATC2, NFAT1, NFATP
UniProt & NIH Common Fund Data Resources
Find proteins for Q13469 (Homo sapiens) Explore Q13469  Go to UniProtKB:  Q13469
PHAROS:  Q13469

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Forkhead box protein P2	G [auth F], H [auth G]	93	Homo sapiens	Mutation(s): 1  Gene Names: FOXP2, CAGH44, TNRC10
UniProt & NIH Common Fund Data Resources
Find proteins for O15409 (Homo sapiens) Explore O15409  Go to UniProtKB:  O15409
PHAROS:  O15409

Entity ID: 1
Molecule	Chains	Length	Organism	Image
5'-D(TP*TP*AP*GP*GP*AP*AP*AP*AP*TP*TP*TP*GP*TP*TP*TP*CP*AP*TP*AP*GP*)-3'	A, C	21	N/A

Entity ID: 2
Molecule	Chains	Length	Organism	Image
5'-D(AP*AP*CP*TP*AP*TP*GP*AP*AP*AP*CP*AP*AP*AP*TP*TP*TP*TP*CP*CP*TP*)-3'	B, D	21	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	I [auth F], J [auth G]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.287 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.455	α = 90
b = 157.447	β = 118.67
c = 67.666	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-08 
Deposition Author(s): Wu, Y., Stroud, J.C., Borde, M., Bates, D.L., Guo, L., Han, A., Rao, A., Chen, L.

Revision History  

• Version 1.0: 2006-08-08
  Type: Initial release
  
• Version 1.1: 2008-04-30
  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
• Version 1.4: 2023-08-23
  Changes: Data collection, Refinement description