2bj4
From Proteopedia
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|PDB= 2bj4 |SIZE=350|CAPTION= <scene name='initialview01'>2bj4</scene>, resolution 2.00Å | |PDB= 2bj4 |SIZE=350|CAPTION= <scene name='initialview01'>2bj4</scene>, resolution 2.00Å | ||
|SITE= <scene name='pdbsite=AC1:Cbm+Binding+Site+For+Chain+B'>AC1</scene> | |SITE= <scene name='pdbsite=AC1:Cbm+Binding+Site+For+Chain+B'>AC1</scene> | ||
| - | |LIGAND= <scene name='pdbligand=OHT:4-HYDROXYTAMOXIFEN'>OHT</scene> | + | |LIGAND= <scene name='pdbligand=CCS:CARBOXYMETHYLATED+CYSTEINE'>CCS</scene>, <scene name='pdbligand=OHT:4-HYDROXYTAMOXIFEN'>OHT</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2bj4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bj4 OCA], [http://www.ebi.ac.uk/pdbsum/2bj4 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2bj4 RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
Recent studies have identified a series of estrogen receptor (ER)-interacting peptides that recognize sites that are distinct from the classic coregulator recruitment (AF2) region. Here, we report the structural and functional characterization of an ERalpha-specific peptide that binds to the liganded receptor in an AF2-independent manner. The 2-A crystal structure of the ER/peptide complex reveals a binding site that is centered on a shallow depression on the beta-hairpin face of the ligand-binding domain. The peptide binds in an unusual extended conformation and makes multiple contacts with the ligand-binding domain. The location and architecture of the binding site provides an insight into the peptide's ER subtype specificity and ligand interaction preferences. In vivo, an engineered coactivator containing the peptide motif is able to strongly enhance the transcriptional activity of liganded ERalpha, particularly in the presence of 4-hydroxytamoxifen. Furthermore, disruption of this binding surface alters ER's response to the coregulator TIF2. Together, these results indicate that this previously unknown interaction site represents a bona fide control surface involved in regulating receptor activity. | Recent studies have identified a series of estrogen receptor (ER)-interacting peptides that recognize sites that are distinct from the classic coregulator recruitment (AF2) region. Here, we report the structural and functional characterization of an ERalpha-specific peptide that binds to the liganded receptor in an AF2-independent manner. The 2-A crystal structure of the ER/peptide complex reveals a binding site that is centered on a shallow depression on the beta-hairpin face of the ligand-binding domain. The peptide binds in an unusual extended conformation and makes multiple contacts with the ligand-binding domain. The location and architecture of the binding site provides an insight into the peptide's ER subtype specificity and ligand interaction preferences. In vivo, an engineered coactivator containing the peptide motif is able to strongly enhance the transcriptional activity of liganded ERalpha, particularly in the presence of 4-hydroxytamoxifen. Furthermore, disruption of this binding surface alters ER's response to the coregulator TIF2. Together, these results indicate that this previously unknown interaction site represents a bona fide control surface involved in regulating receptor activity. | ||
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| - | ==Disease== | ||
| - | 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]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Pike, A C.W.]] | [[Category: Pike, A C.W.]] | ||
[[Category: Treuter, E.]] | [[Category: Treuter, E.]] | ||
| - | [[Category: OHT]] | ||
[[Category: dna-binding]] | [[Category: dna-binding]] | ||
[[Category: ligand-binding domain (lbd)]] | [[Category: ligand-binding domain (lbd)]] | ||
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[[Category: transcription factor]] | [[Category: transcription factor]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:07:13 2008'' |
Revision as of 23:07, 30 March 2008
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| , resolution 2.00Å | |||||||
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| Sites: | |||||||
| Ligands: | , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
ESTROGEN RECEPTOR ALPHA LBD IN COMPLEX WITH A PHAGE-DISPLAY DERIVED PEPTIDE ANTAGONIST
Overview
Recent studies have identified a series of estrogen receptor (ER)-interacting peptides that recognize sites that are distinct from the classic coregulator recruitment (AF2) region. Here, we report the structural and functional characterization of an ERalpha-specific peptide that binds to the liganded receptor in an AF2-independent manner. The 2-A crystal structure of the ER/peptide complex reveals a binding site that is centered on a shallow depression on the beta-hairpin face of the ligand-binding domain. The peptide binds in an unusual extended conformation and makes multiple contacts with the ligand-binding domain. The location and architecture of the binding site provides an insight into the peptide's ER subtype specificity and ligand interaction preferences. In vivo, an engineered coactivator containing the peptide motif is able to strongly enhance the transcriptional activity of liganded ERalpha, particularly in the presence of 4-hydroxytamoxifen. Furthermore, disruption of this binding surface alters ER's response to the coregulator TIF2. Together, these results indicate that this previously unknown interaction site represents a bona fide control surface involved in regulating receptor activity.
About this Structure
2BJ4 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Delineation of a unique protein-protein interaction site on the surface of the estrogen receptor., Kong EH, Heldring N, Gustafsson JA, Treuter E, Hubbard RE, Pike AC, Proc Natl Acad Sci U S A. 2005 Mar 8;102(10):3593-8. Epub 2005 Feb 23. PMID:15728727
Page seeded by OCA on Mon Mar 31 02:07:13 2008
