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| | ==Crystal structure of VDR-LBD complexed with 2-methylidene-19-nor-1a,25-dihydroxyvitamin D3== | | ==Crystal structure of VDR-LBD complexed with 2-methylidene-19-nor-1a,25-dihydroxyvitamin D3== |
| - | <StructureSection load='5b41' size='340' side='right' caption='[[5b41]], [[Resolution|resolution]] 1.89Å' scene=''> | + | <StructureSection load='5b41' size='340' side='right'caption='[[5b41]], [[Resolution|resolution]] 1.89Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5b41]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5B41 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5B41 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5b41]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5B41 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5B41 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=YSV:(1R,3R)-5-(2-((1R,3AS,7AR,E)-1-((R)-6-HYDROXY-6-METHYLHEPTAN-2-YL)-7A-METHYLOCTAHYDRO-4H-INDEN-4-YLIDENE)ETHYLIDENE)-2-METHYLENECYCLOHEXANE-1,3-DIOL'>YSV</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.89Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5b41 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5b41 OCA], [http://pdbe.org/5b41 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5b41 RCSB], [http://www.ebi.ac.uk/pdbsum/5b41 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5b41 ProSAT]</span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=YSV:(1R,3R)-5-(2-((1R,3AS,7AR,E)-1-((R)-6-HYDROXY-6-METHYLHEPTAN-2-YL)-7A-METHYLOCTAHYDRO-4H-INDEN-4-YLIDENE)ETHYLIDENE)-2-METHYLENECYCLOHEXANE-1,3-DIOL'>YSV</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=5b41 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5b41 OCA], [https://pdbe.org/5b41 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5b41 RCSB], [https://www.ebi.ac.uk/pdbsum/5b41 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5b41 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/VDR_RAT VDR_RAT]] 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:17227670</ref> [[http://www.uniprot.org/uniprot/MED1_HUMAN MED1_HUMAN]] Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors.<ref>PMID:9653119</ref> <ref>PMID:10406464</ref> <ref>PMID:12218053</ref> <ref>PMID:12037571</ref> <ref>PMID:11867769</ref> <ref>PMID:12556447</ref> <ref>PMID:14636573</ref> <ref>PMID:15471764</ref> <ref>PMID:15340084</ref> <ref>PMID:15989967</ref> <ref>PMID:16574658</ref> | + | [https://www.uniprot.org/uniprot/VDR_RAT VDR_RAT] 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:17227670</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 5b41" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 5b41" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Vitamin D receptor 3D structures|Vitamin D receptor 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Anami, Y]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Itoh, T]] | + | [[Category: Large Structures]] |
| - | [[Category: Yamamoto, K]] | + | [[Category: Rattus norvegicus]] |
| - | [[Category: Co-factor]] | + | [[Category: Anami Y]] |
| - | [[Category: Rxr]] | + | [[Category: Itoh T]] |
| - | [[Category: Transcription]] | + | [[Category: Yamamoto K]] |
| - | [[Category: Vdr]]
| + | |
| - | [[Category: Vdre]]
| + | |
| - | [[Category: Vitamin d3]]
| + | |
| Structural highlights
Function
VDR_RAT 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.[1]
Publication Abstract from PubMed
Vitamin D receptor (VDR) controls the expression of numerous genes through the conformational change caused by binding 1alpha,25-dihydroxyvitamin D3. Helix 12 in the ligand-binding domain (LBD) is key to regulating VDR activation. The structures of apo VDR-LBD and the VDR-LBD/antagonist complex are unclear. Here, we reveal their unprecedented structures in solution using a hybrid method combining small-angle X-ray scattering and molecular dynamics simulations. In apo rat VDR-LBD, helix 12 is partially unraveled, and it is positioned around the canonical active position and fluctuates. Helix 11 greatly bends toward the outside at Q396, creating a kink. In the rat VDR-LBD/antagonist complex, helix 12 does not generate the activation function 2 surface, and loop 11-12 is remarkably flexible compared to that in the apo rat VDR-LBD. On the basis of these structural insights, we propose a "folding-door model" to describe the mechanism of agonism/antagonism of VDR-LBD.
Apo- and Antagonist-Binding Structures of Vitamin D Receptor Ligand-Binding Domain Revealed by Hybrid Approach Combining Small-Angle X-ray Scattering and Molecular Dynamics.,Anami Y, Shimizu N, Ekimoto T, Egawa D, Itoh T, Ikeguchi M, Yamamoto K J Med Chem. 2016 Sep 8;59(17):7888-900. doi: 10.1021/acs.jmedchem.6b00682. Epub, 2016 Aug 26. PMID:27535484[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Vanhooke JL, Tadi BP, Benning MM, Plum LA, DeLuca HF. New analogs of 2-methylene-19-nor-(20S)-1,25-dihydroxyvitamin D3 with conformationally restricted side chains: evaluation of biological activity and structural determination of VDR-bound conformations. Arch Biochem Biophys. 2007 Apr 15;460(2):161-5. Epub 2006 Dec 12. PMID:17227670 doi:10.1016/j.abb.2006.11.029
- ↑ Anami Y, Shimizu N, Ekimoto T, Egawa D, Itoh T, Ikeguchi M, Yamamoto K. Apo- and Antagonist-Binding Structures of Vitamin D Receptor Ligand-Binding Domain Revealed by Hybrid Approach Combining Small-Angle X-ray Scattering and Molecular Dynamics. J Med Chem. 2016 Sep 8;59(17):7888-900. doi: 10.1021/acs.jmedchem.6b00682. Epub, 2016 Aug 26. PMID:27535484 doi:http://dx.doi.org/10.1021/acs.jmedchem.6b00682
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