2as5: Difference between revisions

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{{STRUCTURE_2as5|  PDB=2as5  |  SCENE=  }}  
{{STRUCTURE_2as5|  PDB=2as5  |  SCENE=  }}  


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




==Overview==
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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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==Disease==
==Disease==
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[[Category: Rhr domain]]
[[Category: Rhr domain]]
[[Category: Winged helix-turn-helix]]
[[Category: Winged helix-turn-helix]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 19:24:50 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 04:47:58 2008''

Revision as of 04:48, 28 July 2008

File:2as5.png

Template:STRUCTURE 2as5

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

Template:ABSTRACT PUBMED 16873067

DiseaseDisease

Known disease associated with this structure: Speech-language disorder-1 OMIM:[605317]

About this StructureAbout this Structure

2AS5 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

FOXP3 controls regulatory T cell function through cooperation with NFAT., Wu Y, Borde M, Heissmeyer V, Feuerer M, Lapan AD, Stroud JC, Bates DL, Guo L, Han A, Ziegler SF, Mathis D, Benoist C, Chen L, Rao A, Cell. 2006 Jul 28;126(2):375-87. PMID:16873067

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