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1k3z

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{{STRUCTURE_1k3z| PDB=1k3z | SCENE= }}
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'''X-ray crystal structure of the IkBb/NF-kB p65 homodimer complex'''
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===X-ray crystal structure of the IkBb/NF-kB p65 homodimer complex===
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==Overview==
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We report the crystal structure of a murine IkappaBbeta x NF-kappaB p65 homodimer complex. Crystallographic models were determined for two triclinic crystalline systems and refined against data at 2.5 and 2.1 A. The overall complex structure is similar to that of the IkappaBalpha.NF-kappaB p50/p65 heterodimer complex. One NF-kappaB p65 subunit nuclear localization signal clearly contacts IkappaBbeta, whereas a homologous segment from the second subunit of the homodimer is mostly solvent-exposed. The unique 47-amino acid insertion between ankyrin repeats three and four of IkappaBbeta is mostly disordered in the structure. Primary sequence analysis and differences in the mode of binding at the IkappaBbeta sixth ankyrin repeat and NF-kappaB p65 homodimer suggest a model for nuclear IkappaBbeta.NF-kappaB.DNA ternary complex formation. These unique structural features of IkappaBbeta may contribute to its ability to mediate persistent NF-kappaB activation.
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(as it appears on PubMed at http://www.pubmed.gov), where 12686541 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12686541}}
==About this Structure==
==About this Structure==
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[[Category: Protein-protein complex]]
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[[Category: Transcription factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:16:39 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 16:10:44 2008''

Revision as of 13:10, 29 July 2008

Image:1k3z.png

Template:STRUCTURE 1k3z

X-ray crystal structure of the IkBb/NF-kB p65 homodimer complex

Template:ABSTRACT PUBMED 12686541

About this Structure

1K3Z is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.

Reference

X-ray crystal structure of an IkappaBbeta x NF-kappaB p65 homodimer complex., Malek S, Huang DB, Huxford T, Ghosh S, Ghosh G, J Biol Chem. 2003 Jun 20;278(25):23094-100. Epub 2003 Apr 9. PMID:12686541

Page seeded by OCA on Tue Jul 29 16:10:44 2008

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