2pom: Difference between revisions

New page: left|200px<br /> <applet load="2pom" size="450" color="white" frame="true" align="right" spinBox="true" caption="2pom, resolution 2.270Å" /> '''TAB1 with manganes...
 
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[[Image:2pom.gif|left|200px]]<br />
<applet load="2pom" size="450" color="white" frame="true" align="right" spinBox="true"
caption="2pom, resolution 2.270&Aring;" />
'''TAB1 with manganese ion'''<br />


==Overview==
==TAB1 with manganese ion==
In addition to caspase inhibition, X-linked inhibitor of apoptosis (XIAP), induces NF-kappaB and MAP kinase activation during TGF-b and BMP receptor, signaling and upon overexpression. Here we show that the BIR1 domain of, XIAP, which has no previously ascribed function, directly interacts with, TAB1 to induce NF-kappaB activation. TAB1 is an upstream adaptor for the, activation of the kinase TAK1, which in turn couples to the NF-kappaB, pathway. We report the crystal structures of BIR1, TAB1, and the BIR1/TAB1, complex. The BIR1/TAB1 structure reveals a striking butterfly-shaped dimer, and the detailed interaction between BIR1 and TAB1. Structure-based, mutagenesis and knockdown of TAB1 show unambiguously that the BIR1/TAB1, interaction is crucial for XIAP-induced TAK1 and NF-kappaB activation. We, show that although not interacting with BIR1, Smac, the antagonist for, caspase inhibition by XIAP, also inhibits the XIAP/TAB1 interaction., Disruption of BIR1 dimerization abolishes XIAP-mediated NF-kappaB, activation, implicating a proximity-induced mechanism for TAK1 activation.
<StructureSection load='2pom' size='340' side='right'caption='[[2pom]], [[Resolution|resolution]] 2.27&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[2pom]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2POM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2POM FirstGlance]. <br>
2POM is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with MN as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2POM OCA].
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.27&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2pom FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pom OCA], [https://pdbe.org/2pom PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pom RCSB], [https://www.ebi.ac.uk/pdbsum/2pom PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pom ProSAT]</span></td></tr>
XIAP induces NF-kappaB activation via the BIR1/TAB1 interaction and BIR1 dimerization., Lu M, Lin SC, Huang Y, Kang YJ, Rich R, Lo YC, Myszka D, Han J, Wu H, Mol Cell. 2007 Jun 8;26(5):689-702. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17560374 17560374]
</table>
== Function ==
[https://www.uniprot.org/uniprot/TAB1_HUMAN TAB1_HUMAN] May be an important signaling intermediate between TGFB receptors and MAP3K7/TAK1. May play an important role in mammalian embryogenesis.<ref>PMID:16879102</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/po/2pom_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2pom ConSurf].
<div style="clear:both"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Lin, S.C.]]
[[Category: Lin SC]]
[[Category: MN]]
[[Category: pp2c-like domain]]
 
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