2v2t
From Proteopedia
(New page: 200px<br /><applet load="2v2t" size="450" color="white" frame="true" align="right" spinBox="true" caption="2v2t, resolution 3.05Å" /> '''X-RAY STRUCTURE OF A...) |
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| - | [[Image:2v2t.jpg|left|200px]]<br /><applet load="2v2t" size=" | + | [[Image:2v2t.jpg|left|200px]]<br /><applet load="2v2t" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="2v2t, resolution 3.05Å" /> | caption="2v2t, resolution 3.05Å" /> | ||
'''X-RAY STRUCTURE OF A NF-KB P50-RELB-DNA COMPLEX'''<br /> | '''X-RAY STRUCTURE OF A NF-KB P50-RELB-DNA COMPLEX'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2V2T is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http:// | + | 2V2T is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V2T OCA]. |
==Reference== | ==Reference== | ||
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[[Category: transferase]] | [[Category: transferase]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 12:51:26 2008'' |
Revision as of 10:51, 23 January 2008
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X-RAY STRUCTURE OF A NF-KB P50-RELB-DNA COMPLEX
Overview
We describe here the X-ray crystal structure of NF-kappaB p50/RelB, heterodimer bound to a kappaB DNA. Although the global modes of subunit, association and kappaB DNA recognition are similar to other NF-kappaB/DNA, complexes, this complex reveals distinctive features not observed for, non-RelB complexes. For example, Lys274 of RelB is removed from the, protein-DNA interface whereas the corresponding residues in all other, subunits make base-specific contacts. This mode of binding suggests that, RelB may allow the recognition of more diverse kappaB sequences., Complementary surfaces on RelB and p50, as revealed by the crystal, contacts, are highly suggestive of assembly of multiple p50/RelB, heterodimers on tandem kappaB sites in solution. Consistent with this, model our in vitro binding experiments reveal optimal assembly of two, wild-type p50/RelB heterodimers on tandem HIV kappaB DNA with 2 bp spacing, but not by a mutant heterodimer where one of the RelB packing surface is, altered. We suggest that multiple NF-kappaB dimers assemble at diverse, kappaB promoters through direct interactions utilizing unique, protein-protein interaction surfaces.
About this Structure
2V2T is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.
Reference
X-ray Structure of a NF-kappaB p50/RelB/DNA Complex Reveals Assembly of Multiple Dimers on Tandem kappaB Sites., Moorthy AK, Huang DB, Wang VY, Vu D, Ghosh G, J Mol Biol. 2007 Oct 26;373(3):723-34. Epub 2007 Aug 22. PMID:17869269
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