1sj0: Difference between revisions

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[[Image:1sj0.gif|left|200px]]<br /><applet load="1sj0" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1sj0, resolution 1.90&Aring;" />
'''Human Estrogen Receptor Alpha Ligand-binding Domain in Complex with the Antagonist Ligand 4-D'''<br />


==Overview==
==Human Estrogen Receptor Alpha Ligand-binding Domain in Complex with the Antagonist Ligand 4-D==
The discovery and synthesis of dihydrobenzoxathiins as potent, ERalpha subtype selective ligands are described. The most active analogue, 4-D, was found to be 50-fold selective in a competitive binding assay and 100-fold selective in a transactivation assay in HEK-293 cells. The alpha selectivity was postulated to lie in the interaction of the sulfur atom of the benzoxathiin ring with the two discriminating residues in the binding pocket of the receptor isoforms.
<StructureSection load='1sj0' size='340' side='right'caption='[[1sj0]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1sj0]] 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=1SJ0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SJ0 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=E4D:(2S,3R)-2-(4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)-2,3-DIHYDRO-3-(4-HYDROXYPHENYL)BENZO[B][1,4]OXATHIIN-6-OL'>E4D</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=1sj0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sj0 OCA], [https://pdbe.org/1sj0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sj0 RCSB], [https://www.ebi.ac.uk/pdbsum/1sj0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sj0 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</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/sj/1sj0_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=1sj0 ConSurf].
<div style="clear:both"></div>


==Disease==
==See Also==
Known diseases associated with this structure: Atherosclerosis, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]], Breast cancer OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]], Estrogen resistance OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]], HDL response to hormone replacement, augmented OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]], Migraine, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]], Myocardial infarction, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=133430 133430]]
*[[Estrogen receptor 3D structures|Estrogen receptor 3D structures]]
 
== References ==
==About this Structure==
<references/>
1SJ0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=E4D:'>E4D</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SJ0 OCA].
__TOC__
 
</StructureSection>
==Reference==
Estrogen receptor ligands. II. Discovery of benzoxathiins as potent, selective estrogen receptor alpha modulators., Kim S, Wu JY, Birzin ET, Frisch K, Chan W, Pai LY, Yang YT, Mosley RT, Fitzgerald PM, Sharma N, Dahllund J, Thorsell AG, DiNinno F, Rohrer SP, Schaeffer JM, Hammond ML, J Med Chem. 2004 Apr 22;47(9):2171-5. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15084115 15084115]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Birzin, E T.]]
[[Category: Birzin ET]]
[[Category: Chan, W.]]
[[Category: Chan W]]
[[Category: DiNinno, F.]]
[[Category: DiNinno F]]
[[Category: Fitzgerald, P M.]]
[[Category: Fitzgerald PM]]
[[Category: Hammond, M L.]]
[[Category: Hammond ML]]
[[Category: Kim, S.]]
[[Category: Kim S]]
[[Category: Mosley, R T.]]
[[Category: Mosley RT]]
[[Category: Pai, L Y.]]
[[Category: Pai LY]]
[[Category: Rohrer, S P.]]
[[Category: Rohrer SP]]
[[Category: Schaeffer, J M.]]
[[Category: Schaeffer JM]]
[[Category: Sharma, N.]]
[[Category: Sharma N]]
[[Category: Wu, J Y.]]
[[Category: Wu JY]]
[[Category: Yang, Y T.]]
[[Category: Yang YT]]
[[Category: E4D]]
[[Category: antagonist]]
[[Category: er-alpha]]
[[Category: nuclear receptor]]
[[Category: transcription factor]]
 
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