scholarly journals Visualizing the action of steroid hormone receptors in living cells

2007 ◽  
Vol 5 (1) ◽  
pp. nrs.05003 ◽  
Author(s):  
Alexander Griekspoor ◽  
Wilbert Zwart ◽  
Jacques Neefjes ◽  
Rob Michalides

Transcription controlled by Steroid Hormone Receptors (SHRs) plays a key role in many important physiological processes like organ development, metabolite homeostasis, and response to external stimuli. Understandably, the members of this family have drawn a lot of attention from the scientific community since their discovery, four decades ago. Still, after many years of research we are only beginning to unravel the complex nature of these receptors. The pace at which we do has improved significantly in recent years with the discovery of genetically encoded fluorescent probes, and the accompanying revival of biophysical approaches that allow more detailed study of SHRs. Here, we will look into the different aspects of SHR signalling, and discuss how biophysical techniques have contributed to visualizing their function in their native context, the living cell.

2000 ◽  
Vol 35 (3-4) ◽  
pp. 120-124 ◽  
Author(s):  
VNA Breeveld-Dwarkasing ◽  
GC van der Weijden ◽  
MAM Taverne ◽  
FMF van Dissel-Emiliani

2011 ◽  
Vol 185 (4S) ◽  
Author(s):  
Gholamreza Pourmand ◽  
Sepehr Salem ◽  
Abdolrasoul Mehrsai ◽  
Farid Kosari

1985 ◽  
Vol 28 (2) ◽  
pp. 87-89 ◽  
Author(s):  
P. K. Chaudhuri ◽  
M. J. Walker ◽  
C. W. Beattie ◽  
T. K. Das Gupta

2001 ◽  
Vol 361 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Guy VERRIJDT ◽  
Annemie HAELENS ◽  
Erik SCHOENMAKERS ◽  
Wilfried ROMBAUTS ◽  
Frank CLAESSENS

We performed a comparative analysis of the effect of high-mobility group box protein 1 (HMGB1) on DNA binding by the DNA-binding domains (DBDs) of the androgen, glucocorticoid, progesterone and mineralocorticoid receptors. The affinity of the DBDs of the different receptors for the tyrosine aminotransferase glucocorticoid response element, a classical high-affinity binding element, was augmented up to 7-fold by HMGB1. We found no major differences in the effects of HMGB1 on DNA binding between the different steroid hormone receptors. In transient transfection assays, however, HMGB1 significantly enhances the activity of the glucocorticoid and progesterone receptors but not the androgen or mineralocorticoid receptor. We also investigated the effect of HMGB1 on the binding of the androgen receptor DBD to a subclass of directly repeated response elements that is recognized exclusively by the androgen receptor and not by the glucocorticoid, progesterone or mineralocorticoid receptor. Surprisingly, a deletion of 26 amino acid residues from the C-terminal extension of the androgen receptor DBD does not influence DNA binding but destroys its sensitivity to HMGB1. Deletion of the corresponding fragment in the DBDs of the glucocorticoid, progesterone and mineralocorticoid receptor destroyed their DNA binding. This 26-residue fragment is therefore essential for the influence of HMGB1 on DNA recognition by all steroid hormone receptors that were tested. However, it is dispensable for DNA binding by the androgen receptor.


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