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==Crystal structure of a novel vitamin D3 analogue, ZK203278 showing dissociated profile==
<StructureSection load='3kpz' size='340' side='right'caption='[[3kpz]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3kpz]] 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=3KPZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3KPZ 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZNE:(1R,3S,5Z)-5-[(2E)-2-{(1R,3AS,7AR)-1-[(1R,5S)-5-HYDROXY-1-METHYL-5-(1,3-THIAZOL-2-YL)PENTYL]-7A-METHYLOCTAHYDRO-4H-INDEN-4-YLIDENE}ETHYLIDENE]-4-METHYLIDENECYCLOHEXANE-1,3-DIOL'>ZNE</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=3kpz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kpz OCA], [https://pdbe.org/3kpz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3kpz RCSB], [https://www.ebi.ac.uk/pdbsum/3kpz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3kpz 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> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The plethora of actions of 1alpha,25-dihydroxyvitamin D(3), the active form of the seco-steroid hormone vitamin D, in various systems suggested wide clinical applications in treatments for renal osteodystrophy, osteoporosis, psoriasis, cancer, autoimmune diseases and prevention of graft rejection. However, the major side-effects of hypercalcemia of VDR ligands limit their use. ZK203278, a novel synthetic analog has been shown to act as a potent immunomodulator and presents dissociated biologic profile with low calcemic side-effects. Here, we described the crystal structures of the hVDR ligand-binding domain in complex with ZK203278 and determined its correlation with its specific dissociated biologic profile. The VDR/ZK203278 structure, in comparison with VDR/1alpha,25-dihydroxyvitamin D(3), shows specific interactions of the thiazole group of ZK203278 with residues of H3, H11 and H12. These specific interactions may lead to altered selective interactions with co-regulators and consequently to the dissociated biologic profile of this novel ligand.

Crystal structure of a vitamin D3 analog, ZK203278, showing dissociated profile.,Rochel N, Moras D Anticancer Res. 2012 Jan;32(1):335-9. PMID:22213324<ref>PMID:22213324</ref>

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

==See Also==
*[[Sandbox vdr|Sandbox vdr]]
*[[Vitamin D receptor 3D structures|Vitamin D receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Moras D]]
[[Category: Rochel N]]