1zk9

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{{Seed}}
 
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[[Image:1zk9.png|left|200px]]
 
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==NF-kB RelB forms an intertwined homodimer==
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The line below this paragraph, containing "STRUCTURE_1zk9", creates the "Structure Box" on the page.
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<StructureSection load='1zk9' size='340' side='right'caption='[[1zk9]], [[Resolution|resolution]] 2.18&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1zk9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZK9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZK9 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.18&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1zk9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zk9 OCA], [https://pdbe.org/1zk9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zk9 RCSB], [https://www.ebi.ac.uk/pdbsum/1zk9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zk9 ProSAT]</span></td></tr>
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{{STRUCTURE_1zk9| PDB=1zk9 | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RELB_MOUSE RELB_MOUSE] NF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric RelB-p50 and RelB-p52 complexes are transcriptional activators. RELB neither associates with DNA nor with RELA/p65 or REL. Stimulates promoter activity in the presence of NFKB2/p49 (By similarity). As a member of the NUPR1/RELB/IER3 survival pathway, may allow the development of pancreatic intraepithelial neoplasias.<ref>PMID:22565310</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zk/1zk9_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1zk9 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The X-ray structure of the RelB dimerization domain (DD) reveals that the RelBDD assumes an unexpected intertwined fold topology atypical of other NF-kappaB dimers. All typical NF-kappaB dimers are formed by the association of two independently folded immunoglobulin (Ig) domains. In RelBDD, two polypeptides reconstruct both Ig domains in the dimer with an extra beta sheet connecting the two domains. Residues most critical to NF-kappaB dimer formation are invariant in RelB, and Y300 plays a positive role in RelBDD dimer formation. The presence of RelB-specific nonpolar residues at the surface removes several intradomain surface hydrogen bonds that may render the domain fold unstable. Intertwining may stabilize the RelBDD homodimer by forming the extra beta sheet. We show that, as in the crystal, RelB forms an intertwined homodimer in solution. We suggest that the transiently stable RelB homodimer might prevent its rapid degradation, allowing for heterodimer formation with p50 and p52.
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===NF-kB RelB forms an intertwined homodimer===
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NF-kappaB RelB forms an intertwined homodimer.,Huang DB, Vu D, Ghosh G Structure. 2005 Sep;13(9):1365-73. PMID:16154093<ref>PMID:16154093</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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The line below this paragraph, {{ABSTRACT_PUBMED_16154093}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1zk9" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 16154093 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_16154093}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1ZK9 is a [[Single protein]] structure of sequence 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=1ZK9 OCA].
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==Reference==
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NF-kappaB RelB forms an intertwined homodimer., Huang DB, Vu D, Ghosh G, Structure. 2005 Sep;13(9):1365-73. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16154093 16154093]
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Single protein]]
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[[Category: Ghosh G]]
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[[Category: Ghosh, G.]]
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[[Category: Huang DB]]
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[[Category: Huang, D B.]]
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[[Category: Vu D]]
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[[Category: Vu, D.]]
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[[Category: Intertwined dimer]]
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[[Category: Nf-kb]]
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[[Category: Transcription factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 09:02:00 2008''
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Current revision

NF-kB RelB forms an intertwined homodimer

PDB ID 1zk9

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