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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Cortisol-21-sulfate (FS) is a specific ligand for intracellular transcortin: demonstration of three types of high affinity corticosteroid binders in bovine aortic cytosol by a combined use of FS and RU 28362.

This paper reports the results of a study on the binding of adrenal steroids in bovine aortic tissue. Using the same method as in our previous study of mineralocorticoid and glucocorticoid binding in rabbit arterial cytosol, we could not demonstrate in the bovine aorta the three types of high affinity binders for these steroids, which we found in the rabbit arteries. In the search for specific markers for each of the three types of binders (glucocorticoid and mineralocorticoid receptors and the transcortin-like intracellular binder), we have found that a conjugated steroid, cortisol-21-sulfate, binds preferentially to the transcortin-like binder, but not to the two receptors. Using this steroid, in combination with the pure synthetic glucocorticoid RU 28362, we were able to clearly discriminate between the three types of corticosteroid binders in bovine aorta.[1]

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