1t2k

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{{STRUCTURE_1t2k| PDB=1t2k | SCENE= }}
{{STRUCTURE_1t2k| PDB=1t2k | SCENE= }}
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'''Structure Of The DNA Binding Domains Of IRF3, ATF-2 and Jun Bound To DNA'''
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===Structure Of The DNA Binding Domains Of IRF3, ATF-2 and Jun Bound To DNA===
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==Overview==
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Transcriptional activation of the interferon-beta (IFN-beta) gene requires assembly of an enhanceosome containing the transcription factors ATF-2/c-Jun, IRF-3/IRF-7, NF-kappaB and HMGI(Y). These factors cooperatively bind a composite DNA site and activate expression of the IFN-beta gene. The 3.0 A crystal structure of the DNA-binding domains of ATF-2/c-Jun and two IRF-3 molecules in a complex with 31 base pairs (bp) of the PRDIV-PRDIII region of the IFN-beta enhancer shows that association of the four proteins with DNA creates a continuous surface for the recognition of 24 bp. The structure, together with in vitro binding studies and protein mutagenesis, shows that protein-protein interactions are not critical for cooperative binding. Instead, cooperativity arises mainly through nucleotide sequence-dependent structural changes in the DNA that allow formation of complementary DNA conformations. Because the binding sites overlap on the enhancer, the unit of recognition is the entire nucleotide sequence, not the individual subsites.
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(as it appears on PubMed at http://www.pubmed.gov), where 15510218 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15510218}}
==About this Structure==
==About this Structure==
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[[Category: Protein dna complex]]
[[Category: Protein dna complex]]
[[Category: Transcription]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:26:16 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 11:50:51 2008''

Revision as of 08:50, 28 July 2008

Image:1t2k.png

Template:STRUCTURE 1t2k

Structure Of The DNA Binding Domains Of IRF3, ATF-2 and Jun Bound To DNA

Template:ABSTRACT PUBMED 15510218

About this Structure

1T2K is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of ATF-2/c-Jun and IRF-3 bound to the interferon-beta enhancer., Panne D, Maniatis T, Harrison SC, EMBO J. 2004 Nov 10;23(22):4384-93. Epub 2004 Oct 28. PMID:15510218

Page seeded by OCA on Mon Jul 28 11:50:51 2008

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