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| | ==Crystal structure of VDR-LBD complexed with 22S-Butyl-25RS-(hydroxyphenyl)-25-methoxy-2-methylidene-19,26,27-trinor-1-hydroxyvitamin D3== | | ==Crystal structure of VDR-LBD complexed with 22S-Butyl-25RS-(hydroxyphenyl)-25-methoxy-2-methylidene-19,26,27-trinor-1-hydroxyvitamin D3== |
| - | <StructureSection load='5xpm' size='340' side='right' caption='[[5xpm]], [[Resolution|resolution]] 2.20Å' scene=''> | + | <StructureSection load='5xpm' size='340' side='right'caption='[[5xpm]], [[Resolution|resolution]] 2.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5xpm]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XPM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XPM FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5xpm]] 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=5XPM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5XPM FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8C0:(1~{R},3~{R})-5-[(2~{E})-2-[(1~{R},3~{a}~{S},7~{a}~{R})-1-[(2~{R},3~{S})-3-[(3~{S})-3-(4-hydroxyphenyl)-3-methoxy-propyl]heptan-2-yl]-7~{a}-methyl-2,3,3~{a},5,6,7-hexahydro-1~{H}-inden-4-ylidene]ethylidene]-2-methylidene-cyclohexane-1,3-diol'>8C0</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]] 2.2Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Vdr, Nr1i1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Buffalo rat]), MED1, ARC205, CRSP1, CRSP200, DRIP205, DRIP230, PBP, PPARBP, PPARGBP, RB18A, TRAP220, TRIP2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8C0:(1~{R},3~{R})-5-[(2~{E})-2-[(1~{R},3~{a}~{S},7~{a}~{R})-1-[(2~{R},3~{S})-3-[(3~{S})-3-(4-hydroxyphenyl)-3-methoxy-propyl]heptan-2-yl]-7~{a}-methyl-2,3,3~{a},5,6,7-hexahydro-1~{H}-inden-4-ylidene]ethylidene]-2-methylidene-cyclohexane-1,3-diol'>8C0</scene></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=5xpm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xpm OCA], [http://pdbe.org/5xpm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5xpm RCSB], [http://www.ebi.ac.uk/pdbsum/5xpm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5xpm ProSAT]</span></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=5xpm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xpm OCA], [https://pdbe.org/5xpm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5xpm RCSB], [https://www.ebi.ac.uk/pdbsum/5xpm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5xpm 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/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> |
| - | <div style="background-color:#fffaf0;">
| + | |
| - | == Publication Abstract from PubMed ==
| + | |
| - | Vitamin D receptor (VDR) antagonists can be classified into two categories: the first category of VDR antagonists, which do not stabilize the helix 11-12, and the second category of antagonists, which destabilize the helix 6-7 region. To elucidate the mechanism underlying the first category antagonists by using the crystal structure, we designed and synthesized several VDR ligands with a p-hydroxyphenyl group at the C25-position. Of these, 22S-butyl-25-carbonyl analogue 5b and 25-di-p-hydoroxyphenyl analogues 6a,b showed strong antagonistic activity. We succeeded in cocrystallizing the ligand-binding domain of VDR complexed with 5b and found that the structure showed an alternative conformation of the helix 11-12 that explained the mechanism of the first category antagonists. Taking the present and previous studies together, we could elucidate the mechanisms underlying first and second categories antagonists based on individual crystal structures. This study provides significant insights into antagonism against not only VDR but also nuclear receptors.
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| - | Vitamin D Analogues with a p-Hydroxyphenyl Group at the C25 Position: Crystal Structure of Vitamin D Receptor Ligand-Binding Domain Complexed with the Ligand Explains the Mechanism Underlying Full Antagonistic Action.,Kato A, Yamao M, Hashihara Y, Ishida H, Itoh T, Yamamoto K J Med Chem. 2017 Oct 26;60(20):8394-8406. doi: 10.1021/acs.jmedchem.7b00819. Epub, 2017 Oct 10. PMID:28954197<ref>PMID:28954197</ref> | + | ==See Also== |
| - | | + | *[[Vitamin D receptor 3D structures|Vitamin D receptor 3D structures]] |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div>
| + | |
| - | <div class="pdbe-citations 5xpm" style="background-color:#fffaf0;"></div>
| + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Buffalo rat]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]] | + | [[Category: Large Structures]] |
| - | [[Category: Itoh, T]] | + | [[Category: Rattus norvegicus]] |
| - | [[Category: Kato, A]] | + | [[Category: Itoh T]] |
| - | [[Category: Yamamoto, K]] | + | [[Category: Kato A]] |
| - | [[Category: Co-factor]] | + | [[Category: Yamamoto K]] |
| - | [[Category: Rxr]]
| + | |
| - | [[Category: Transcription]]
| + | |
| - | [[Category: Vdr]]
| + | |
| - | [[Category: Vdre]]
| + | |
| - | [[Category: Vitamin d3]]
| + | |
| Structural highlights
Function
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.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
See Also
References
- ↑ Yuan CX, Ito M, Fondell JD, Fu ZY, Roeder RG. The TRAP220 component of a thyroid hormone receptor- associated protein (TRAP) coactivator complex interacts directly with nuclear receptors in a ligand-dependent fashion. Proc Natl Acad Sci U S A. 1998 Jul 7;95(14):7939-44. PMID:9653119
- ↑ Zhang J, Fondell JD. Identification of mouse TRAP100: a transcriptional coregulatory factor for thyroid hormone and vitamin D receptors. Mol Endocrinol. 1999 Jul;13(7):1130-40. PMID:10406464
- ↑ Wang Q, Sharma D, Ren Y, Fondell JD. A coregulatory role for the TRAP-mediator complex in androgen receptor-mediated gene expression. J Biol Chem. 2002 Nov 8;277(45):42852-8. Epub 2002 Sep 5. PMID:12218053 doi:10.1074/jbc.M206061200
- ↑ Ge K, Guermah M, Yuan CX, Ito M, Wallberg AE, Spiegelman BM, Roeder RG. Transcription coactivator TRAP220 is required for PPAR gamma 2-stimulated adipogenesis. Nature. 2002 May 30;417(6888):563-7. PMID:12037571 doi:10.1038/417563a
- ↑ Kang YK, Guermah M, Yuan CX, Roeder RG. The TRAP/Mediator coactivator complex interacts directly with estrogen receptors alpha and beta through the TRAP220 subunit and directly enhances estrogen receptor function in vitro. Proc Natl Acad Sci U S A. 2002 Mar 5;99(5):2642-7. Epub 2002 Feb 26. PMID:11867769 doi:10.1073/pnas.261715899
- ↑ Coulthard VH, Matsuda S, Heery DM. An extended LXXLL motif sequence determines the nuclear receptor binding specificity of TRAP220. J Biol Chem. 2003 Mar 28;278(13):10942-51. Epub 2003 Jan 29. PMID:12556447 doi:10.1074/jbc.M212950200
- ↑ Wallberg AE, Yamamura S, Malik S, Spiegelman BM, Roeder RG. Coordination of p300-mediated chromatin remodeling and TRAP/mediator function through coactivator PGC-1alpha. Mol Cell. 2003 Nov;12(5):1137-49. PMID:14636573
- ↑ Wu Q, Burghardt R, Safe S. Vitamin D-interacting protein 205 (DRIP205) coactivation of estrogen receptor alpha (ERalpha) involves multiple domains of both proteins. J Biol Chem. 2004 Dec 17;279(51):53602-12. Epub 2004 Oct 5. PMID:15471764 doi:10.1074/jbc.M409778200
- ↑ Malik S, Guermah M, Yuan CX, Wu W, Yamamura S, Roeder RG. Structural and functional organization of TRAP220, the TRAP/mediator subunit that is targeted by nuclear receptors. Mol Cell Biol. 2004 Sep;24(18):8244-54. PMID:15340084 doi:10.1128/MCB.24.18.8244-8254.2004
- ↑ Zhang X, Krutchinsky A, Fukuda A, Chen W, Yamamura S, Chait BT, Roeder RG. MED1/TRAP220 exists predominantly in a TRAP/ Mediator subpopulation enriched in RNA polymerase II and is required for ER-mediated transcription. Mol Cell. 2005 Jul 1;19(1):89-100. PMID:15989967 doi:10.1016/j.molcel.2005.05.015
- ↑ Udayakumar TS, Belakavadi M, Choi KH, Pandey PK, Fondell JD. Regulation of Aurora-A kinase gene expression via GABP recruitment of TRAP220/MED1. J Biol Chem. 2006 May 26;281(21):14691-9. Epub 2006 Mar 30. PMID:16574658 doi:M600163200
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