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Expression, purification and crystallization of the ancestral androgen receptor–DHT complex

Expression, purification and crystallization of the ancestral androgen receptor–DHT complex Steroid receptors (SRs) are a closely related family of ligand‐dependent nuclear receptors that mediate the transcription of genes critical for development, reproduction and immunity. SR dysregulation has been implicated in cancer, inflammatory diseases and metabolic disorders. SRs bind their cognate hormone ligand with exquisite specificity, offering a unique system to study the evolution of molecular recognition. The SR family evolved from an estrogen‐sensitive ancestor and diverged to become sensitive to progestagens, corticoids and, most recently, androgens. To understand the structural mechanisms driving the evolution of androgen responsiveness, the ancestral androgen receptor (ancAR1) was crystallized in complex with 5α‐dihydrotestosterone (DHT) and a fragment of the transcriptional mediator/intermediary factor 2 (Tif2). Crystals diffracted to 2.1 Å resolution and the resulting structure will permit a direct comparison with its progestagen‐sensitive ancestor, ancestral steroid receptor 2 (AncSR2). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section F Wiley

Expression, purification and crystallization of the ancestral androgen receptor–DHT complex

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References (20)

Publisher
Wiley
Copyright
International Union of Crystallography, 2013
ISSN
1744-3091
eISSN
1744-3091
DOI
10.1107/S1744309113018745
pmid
23989146
Publisher site
See Article on Publisher Site

Abstract

Steroid receptors (SRs) are a closely related family of ligand‐dependent nuclear receptors that mediate the transcription of genes critical for development, reproduction and immunity. SR dysregulation has been implicated in cancer, inflammatory diseases and metabolic disorders. SRs bind their cognate hormone ligand with exquisite specificity, offering a unique system to study the evolution of molecular recognition. The SR family evolved from an estrogen‐sensitive ancestor and diverged to become sensitive to progestagens, corticoids and, most recently, androgens. To understand the structural mechanisms driving the evolution of androgen responsiveness, the ancestral androgen receptor (ancAR1) was crystallized in complex with 5α‐dihydrotestosterone (DHT) and a fragment of the transcriptional mediator/intermediary factor 2 (Tif2). Crystals diffracted to 2.1 Å resolution and the resulting structure will permit a direct comparison with its progestagen‐sensitive ancestor, ancestral steroid receptor 2 (AncSR2).

Journal

Acta Crystallographica Section FWiley

Published: Sep 1, 2013

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