3a2j: Difference between revisions

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==Crystal structure of the human vitamin D receptor (H305F/H397F) ligand binding domain complexed with TEI-9647==
The line below this paragraph, containing "STRUCTURE_3a2j", creates the "Structure Box" on the page.
<StructureSection load='3a2j' size='340' side='right'caption='[[3a2j]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[3a2j]] 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=3A2J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A2J FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=TEJ:(1S,3R,5Z,7E,20S,23S)-1,3-DIHYDROXY-23,26-EPOXY-9,10-SECOCHOLESTA-5,7,10,25(27)-TETRAEN-26-ONE'>TEJ</scene></td></tr>
{{STRUCTURE_3a2j|  PDB=3a2j  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3a2j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a2j OCA], [https://pdbe.org/3a2j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3a2j RCSB], [https://www.ebi.ac.uk/pdbsum/3a2j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3a2j ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/VDR_HUMAN VDR_HUMAN] Defects in VDR are the cause of rickets vitamin D-dependent type 2A (VDDR2A) [MIM:[https://omim.org/entry/277440 277440]. A disorder of vitamin D metabolism resulting in severe rickets, hypocalcemia and secondary hyperparathyroidism. Most patients have total alopecia in addition to rickets.<ref>PMID:2849209</ref> <ref>PMID:8381803</ref> <ref>PMID:1652893</ref> <ref>PMID:2177843</ref> <ref>PMID:8106618</ref> <ref>PMID:8392085</ref> <ref>PMID:7828346</ref> <ref>PMID:8675579</ref> <ref>PMID:8961271</ref> <ref>PMID:9005998</ref>
== Function ==
[https://www.uniprot.org/uniprot/VDR_HUMAN VDR_HUMAN] Nuclear hormone receptor. Transcription factor that mediates the action of vitamin D3 by controlling the expression of hormone sensitive genes. Regulates transcription of hormone sensitive genes via its association with the WINAC complex, a chromatin-remodeling complex. Recruited to promoters via its interaction with the WINAC complex subunit BAZ1B/WSTF, which mediates the interaction with acetylated histones, an essential step for VDR-promoter association. Plays a central role in calcium homeostasis.<ref>PMID:16252006</ref> <ref>PMID:10678179</ref> <ref>PMID:15728261</ref> <ref>PMID:16913708</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a2/3a2j_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=3a2j ConSurf].
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== Publication Abstract from PubMed ==
TEI-9647 antagonizes vitamin D receptor (VDR) mediated genomic actions of 1alpha,25(OH)2D3 in human cells but is agonistic in rodent cells. The presence of Cys403, Cys410 or of both residues in the C-terminal region of human VDR (hVDR) results in antagonistic action of this compound. In the complexes of TEI-9647 with wild-type hVDR (hVDRwt) and H397F hVDR, TEI-9647 functions as an antagonist and forms a covalent adduct with hVDR according to MALDI-TOF MS. The crystal structures of complexes of TEI-9647 with rat VDR (rVDR), H305F hVDR and H305F/H397F hVDR showed that the agonistic activity of TEI-9647 is caused by a hydrogen-bond interaction with His397 or Phe397 located in helix 11. Both biological activity assays and the crystal structure of H305F hVDR complexed with TEI-9647 showed that the interaction between His305 and TEI-9647 is crucial for antagonist activity. This study indicates the following stepwise mechanism for TEI-9647 antagonism. Firstly, TEI-9647 forms hydrogen bonds to His305, which promote conformational changes in hVDR and draw Cys403 or Cys410 towards the ligand. This is followed by the formation of a 1,4-Michael addition adduct between the thiol (-SH) group of Cys403 or Cys410 and the exo-methylene group of TEI-9647.


===Crystal structure of the human vitamin D receptor (H305F/H397F) ligand binding domain complexed with TEI-9647===
Structural basis of the histidine-mediated vitamin D receptor agonistic and antagonistic mechanisms of (23S)-25-dehydro-1alpha-hydroxyvitamin D3-26,23-lactone.,Kakuda S, Ishizuka S, Eguchi H, Mizwicki MT, Norman AW, Takimoto-Kamimura M Acta Crystallogr D Biol Crystallogr. 2010 Aug;66(Pt 8):918-26. Epub 2010, Jul 10. PMID:20693691<ref>PMID:20693691</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3a2j" style="background-color:#fffaf0;"></div>


==About this Structure==
==See Also==
3A2J is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A2J OCA].
*[[Sandbox vdr|Sandbox vdr]]
*[[Vitamin D receptor 3D structures|Vitamin D receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Kakuda, S.]]
[[Category: Large Structures]]
[[Category: Takimoto-Kamimura, M.]]
[[Category: Kakuda S]]
[[Category: Activator]]
[[Category: Takimoto-Kamimura M]]
[[Category: Disease mutation]]
[[Category: Dna-binding]]
[[Category: Hormone receptor]]
[[Category: Hormone/growth factor receptor]]
[[Category: Metal-binding]]
[[Category: Nucleus]]
[[Category: Phosphoprotein]]
[[Category: Receptor]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
[[Category: Zinc-finger]]
 
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