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- W2000793078 abstract "Steroid hormone receptors are members of a family of ligand inducible transcription factors, and regulate the transcriptional activation of target genes by recruiting coregulatory proteins to the pre-initiation machinery. The binding of these coregulatory proteins to the steroid hormone receptors is often mediated through their two activation functional domains, AF1, which resides in the N-terminal domain, and the ligand-dependent AF2, which is localized in the C-terminal ligand-binding domain. Compared to other important functional domains of the steroid hormone receptors, our understanding of the mechanisms of action of the AF1 are incomplete, in part, due to the fact that, in solution, AF1 is intrinsically disordered (ID). However, recent studies have shown that AF1 must adopt a functionally active and folded conformation for its optimal activity under physiological conditions. In this review, we summarize and discuss current knowledge regarding the molecular mechanisms of AF1-mediated gene activation, focusing on AF1 conformation and coactivator binding. We further propose models for the binding/folding of the AF1 domains of the steroid hormone receptors and their protein:protein interactions. The population of ID AF1 can be visualized as a collection of many different conformations, some of which may be assuming the proper functional folding for other critical target binding partners that result in the ultimate assembly of AF1:coactivator complexes and subsequent gene regulation. Knowledge of the mechanisms involved therein will significantly help in understanding how signals from a steroid to a specific target gene are conveyed." @default.
- W2000793078 created "2016-06-24" @default.
- W2000793078 creator A5007780827 @default.
- W2000793078 creator A5062814155 @default.
- W2000793078 date "2009-11-01" @default.
- W2000793078 modified "2023-10-15" @default.
- W2000793078 title "Structural and functional relationships of the steroid hormone receptors’ N-terminal transactivation domain" @default.
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- W2000793078 doi "https://doi.org/10.1016/j.steroids.2009.07.012" @default.
- W2000793078 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3074935" @default.
- W2000793078 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19666041" @default.
- W2000793078 hasPublicationYear "2009" @default.
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