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Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface

Prostate cancer is a leading killer of men in the industrialized world. Underlying this disease is the aberrant action of the androgen receptor (AR). AR is distinguished from other nuclear receptors in that after hormone binding, it preferentially responds to a specialized set of coactivators bearin...

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Autores principales: Hur, Eugene, Pfaff, Samuel J, Payne, E. Sturgis, Grøn, Hanne, Buehrer, Benjamin M, Fletterick, Robert J
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2004
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC509409/
https://www.ncbi.nlm.nih.gov/pubmed/15328534
http://dx.doi.org/10.1371/journal.pbio.0020274
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author Hur, Eugene
Pfaff, Samuel J
Payne, E. Sturgis
Grøn, Hanne
Buehrer, Benjamin M
Fletterick, Robert J
author_facet Hur, Eugene
Pfaff, Samuel J
Payne, E. Sturgis
Grøn, Hanne
Buehrer, Benjamin M
Fletterick, Robert J
author_sort Hur, Eugene
collection PubMed
description Prostate cancer is a leading killer of men in the industrialized world. Underlying this disease is the aberrant action of the androgen receptor (AR). AR is distinguished from other nuclear receptors in that after hormone binding, it preferentially responds to a specialized set of coactivators bearing aromatic-rich motifs, while responding poorly to coactivators bearing the leucine-rich “NR box” motifs favored by other nuclear receptors. Under normal conditions, interactions with these AR-specific coactivators through aromatic-rich motifs underlie targeted gene transcription. However, during prostate cancer, abnormal association with such coactivators, as well as with coactivators containing canonical leucine-rich motifs, promotes disease progression. To understand the paradox of this unusual selectivity, we have derived a complete set of peptide motifs that interact with AR using phage display. Binding affinities were measured for a selected set of these peptides and their interactions with AR determined by X-ray crystallography. Structures of AR in complex with FxxLF, LxxLL, FxxLW, WxxLF, WxxVW, FxxFF, and FxxYF motifs reveal a changing surface of the AR coactivator binding interface that permits accommodation of both AR-specific aromatic-rich motifs and canonical leucine-rich motifs. Induced fit provides perfect mating of the motifs representing the known family of AR coactivators and suggests a framework for the design of AR coactivator antagonists.
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spelling pubmed-5094092004-08-24 Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface Hur, Eugene Pfaff, Samuel J Payne, E. Sturgis Grøn, Hanne Buehrer, Benjamin M Fletterick, Robert J PLoS Biol Research Article Prostate cancer is a leading killer of men in the industrialized world. Underlying this disease is the aberrant action of the androgen receptor (AR). AR is distinguished from other nuclear receptors in that after hormone binding, it preferentially responds to a specialized set of coactivators bearing aromatic-rich motifs, while responding poorly to coactivators bearing the leucine-rich “NR box” motifs favored by other nuclear receptors. Under normal conditions, interactions with these AR-specific coactivators through aromatic-rich motifs underlie targeted gene transcription. However, during prostate cancer, abnormal association with such coactivators, as well as with coactivators containing canonical leucine-rich motifs, promotes disease progression. To understand the paradox of this unusual selectivity, we have derived a complete set of peptide motifs that interact with AR using phage display. Binding affinities were measured for a selected set of these peptides and their interactions with AR determined by X-ray crystallography. Structures of AR in complex with FxxLF, LxxLL, FxxLW, WxxLF, WxxVW, FxxFF, and FxxYF motifs reveal a changing surface of the AR coactivator binding interface that permits accommodation of both AR-specific aromatic-rich motifs and canonical leucine-rich motifs. Induced fit provides perfect mating of the motifs representing the known family of AR coactivators and suggests a framework for the design of AR coactivator antagonists. Public Library of Science 2004-09 2004-08-24 /pmc/articles/PMC509409/ /pubmed/15328534 http://dx.doi.org/10.1371/journal.pbio.0020274 Text en Copyright: © 2004 Hur et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Hur, Eugene
Pfaff, Samuel J
Payne, E. Sturgis
Grøn, Hanne
Buehrer, Benjamin M
Fletterick, Robert J
Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title_full Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title_fullStr Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title_full_unstemmed Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title_short Recognition and Accommodation at the Androgen Receptor Coactivator Binding Interface
title_sort recognition and accommodation at the androgen receptor coactivator binding interface
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC509409/
https://www.ncbi.nlm.nih.gov/pubmed/15328534
http://dx.doi.org/10.1371/journal.pbio.0020274
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