3ert

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[[Image:3ert.gif|left|200px]]
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==Overview==
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{{ABSTRACT_9875847}}
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Ligand-dependent activation of transcription by nuclear receptors (NRs) is mediated by interactions with coactivators. Receptor agonists promote coactivator binding, and antagonists block coactivator binding. Here we report the crystal structure of the human estrogen receptor alpha (hER alpha) ligand-binding domain (LBD) bound to both the agonist diethylstilbestrol (DES) and a peptide derived from the NR box II region of the coactivator GRIP1 and the crystal structure of the hER alpha LBD bound to the selective antagonist 4-hydroxytamoxifen (OHT). In the DES-LBD-peptide complex, the peptide binds as a short alpha helix to a hydrophobic groove on the surface of the LBD. In the OHT-LBD complex, helix 12 occludes the coactivator recognition groove by mimicking the interactions of the NR box peptide with the LBD. These structures reveal the two distinct mechanisms by which structural features of OHT promote this "autoinhibitory" helix 12 conformation.
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==About this Structure==
==About this Structure==
3ERT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2ert 2ert]. The following page contains interesting information on the relation of 3ERT with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb45_1.html Estrogen Receptor]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ERT OCA].
3ERT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2ert 2ert]. The following page contains interesting information on the relation of 3ERT with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb45_1.html Estrogen Receptor]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ERT OCA].
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==Reference==
 
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The structural basis of estrogen receptor/coactivator recognition and the antagonism of this interaction by tamoxifen., Shiau AK, Barstad D, Loria PM, Cheng L, Kushner PJ, Agard DA, Greene GL, Cell. 1998 Dec 23;95(7):927-37. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9875847 9875847]
 
[[Category: Estrogen Receptor]]
[[Category: Estrogen Receptor]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Nuclear receptor]]
[[Category: Nuclear receptor]]
[[Category: Transcription factor]]
[[Category: Transcription factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 22:01:07 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 18:26:09 2008''

Revision as of 15:26, 26 June 2008

Image:3ert.png

Template:STRUCTURE 3ert

HUMAN ESTROGEN RECEPTOR ALPHA LIGAND-BINDING DOMAIN IN COMPLEX WITH 4-HYDROXYTAMOXIFEN


Template:ABSTRACT 9875847

About this Structure

3ERT is a Single protein structure of sequence from Homo sapiens. This structure supersedes the now removed PDB entry 2ert. The following page contains interesting information on the relation of 3ERT with [Estrogen Receptor]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 18:26:09 2008

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