Molecular mechanisms of androgen receptor-mediated gene regulation: structure-function analysis of the AF-1 domain

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113 Citations (Scopus)

Abstract

The androgen receptor is a ligand-activated transcription factor that binds DNA response elements as a homodimer. Binding sites for the receptor have been identified both upstream and downstream of the transcription start site. Once bound to DNA, the receptor contacts chromatin remodelling complexes, coactivator proteins and components of the general transcription machinery in order to regulate target gene expression. The main transactivation domain, termed AF1, is located within the structurally distinct amino-terminal domain. This region is structurally flexible but adopts a more folded conformation in the presence of the binding partner TRIF, and this in turn enhances subsequent protein-protein interactions. Thus, there is likely to be a dynamic interplay between protein-protein interactions and protein folding, involving AF1, that is proposed to lead to the assembly and/or disassembly of receptor-dependent transcription complexes.

Original languageEnglish
Pages (from-to)281-293
Number of pages12
JournalENDOCRINE-RELATED CANCER
Volume11
Issue number2
DOIs
Publication statusPublished - 2004

Keywords

  • HUMAN GLUCOCORTICOID-RECEPTOR
  • TRANSCRIPTION FACTOR-TFIIF
  • AMINO-TERMINAL DOMAIN
  • PROSTATE-CANCER CELLS
  • CREB-BINDING-PROTEIN
  • DNA-BINDING
  • RESPONSE ELEMENT
  • ACTIVATION DOMAIN
  • UPSTREAM ENHANCER
  • ANTIGEN PROMOTER

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