1h89: Difference between revisions

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New page: left|200px<br /> <applet load="1h89" size="450" color="white" frame="true" align="right" spinBox="true" caption="1h89, resolution 2.45Å" /> '''CRYSTAL STRUCTURE O...
 
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[[Image:1h89.gif|left|200px]]<br />
<applet load="1h89" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1h89, resolution 2.45&Aring;" />
'''CRYSTAL STRUCTURE OF TERNARY PROTEIN-DNA COMPLEX2'''<br />


==Overview==
==CRYSTAL STRUCTURE OF TERNARY PROTEIN-DNA COMPLEX2==
c-Myb, but not avian myeloblastosis virus (AMV) v-Myb, cooperates with, C/EBP beta to regulate transcription of myeloid-specific genes. To assess, the structural basis for that difference, we determined the crystal, structures of complexes comprised of the c-Myb or AMV v-Myb DNA-binding, domain (DBD), the C/EBP beta DBD, and a promoter DNA fragment. Within the, c-Myb complex, a DNA-bound C/EBP beta interacts with R2 of c-Myb bound to, a different DNA fragment; point mutations in v-Myb R2 eliminate such, interaction within the v-Myb complex. GST pull-down assays, luciferase, trans-activation assays, and atomic force microscopy confirmed that the, interaction of c-Myb and C/EBP beta observed in crystal mimics their long, range interaction on the promoter, which is accompanied by intervening ... [[http://ispc.weizmann.ac.il/pmbin/getpm?11792321 (full description)]]
<StructureSection load='1h89' size='340' side='right'caption='[[1h89]], [[Resolution|resolution]] 2.45&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1h89]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H89 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H89 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.45&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1h89 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h89 OCA], [https://pdbe.org/1h89 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h89 RCSB], [https://www.ebi.ac.uk/pdbsum/1h89 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h89 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CEBPB_HUMAN CEBPB_HUMAN] Important transcriptional activator in the regulation of genes involved in immune and inflammatory responses. Specifically binds to an IL-1 response element in the IL-6 gene. NF-IL6 also binds to regulatory regions of several acute-phase and cytokines genes. It probably plays a role in the regulation of acute-phase reaction, inflammation and hemopoiesis. The consensus recognition site is 5'-T[TG]NNGNAA[TG]-3'. Functions in brown adipose tissue (BAT) differentiation (By similarity). Regulates the transcriptional induction of peroxisome proliferator-activated receptor gamma (PPARG).<ref>PMID:20829347</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/h8/1h89_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=1h89 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
c-Myb, but not avian myeloblastosis virus (AMV) v-Myb, cooperates with C/EBP beta to regulate transcription of myeloid-specific genes. To assess the structural basis for that difference, we determined the crystal structures of complexes comprised of the c-Myb or AMV v-Myb DNA-binding domain (DBD), the C/EBP beta DBD, and a promoter DNA fragment. Within the c-Myb complex, a DNA-bound C/EBP beta interacts with R2 of c-Myb bound to a different DNA fragment; point mutations in v-Myb R2 eliminate such interaction within the v-Myb complex. GST pull-down assays, luciferase trans-activation assays, and atomic force microscopy confirmed that the interaction of c-Myb and C/EBP beta observed in crystal mimics their long range interaction on the promoter, which is accompanied by intervening DNA looping.


==About this Structure==
Mechanism of c-Myb-C/EBP beta cooperation from separated sites on a promoter.,Tahirov TH, Sato K, Ichikawa-Iwata E, Sasaki M, Inoue-Bungo T, Shiina M, Kimura K, Takata S, Fujikawa A, Morii H, Kumasaka T, Yamamoto M, Ishii S, Ogata K Cell. 2002 Jan 11;108(1):57-70. PMID:11792321<ref>PMID:11792321</ref>
1H89 is a [[http://en.wikipedia.org/wiki/Protein_complex Protein complex]] structure of sequences from [[http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]] and [[http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]] with K as [[http://en.wikipedia.org/wiki/ligand ligand]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1H89 OCA]].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Mechanism of c-Myb-C/EBP beta cooperation from separated sites on a promoter., Tahirov TH, Sato K, Ichikawa-Iwata E, Sasaki M, Inoue-Bungo T, Shiina M, Kimura K, Takata S, Fujikawa A, Morii H, Kumasaka T, Yamamoto M, Ishii S, Ogata K, Cell. 2002 Jan 11;108(1):57-70. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11792321 11792321]
</div>
<div class="pdbe-citations 1h89" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Transcriptional activator|Transcriptional activator]]
*[[Transcriptional activator 3D structures|Transcriptional activator 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Ogata K]]
[[Category: Ogata, K.]]
[[Category: Tahirov TH]]
[[Category: Tahirov, T.H.]]
[[Category: K]]
[[Category: bzip]]
[[Category: c-myb]]
[[Category: c/ebp]]
[[Category: crystal structure]]
[[Category: myb]]
[[Category: protein-dna complex]]
[[Category: proto-oncogene]]
[[Category: transcription regulation]]
[[Category: transcription/dna]]
 
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