Hormone-receptor interactions
نویسندگان
چکیده
منابع مشابه
Thyroxine-thyroid hormone receptor interactions.
Thyroid hormone (TH) actions are mediated by nuclear receptors (TRs alpha and beta) that bind triiodothyronine (T(3), 3,5,3'-triiodo-l-thyronine) with high affinity, and its precursor thyroxine (T(4), 3,5,3',5'-tetraiodo-l-thyronine) with lower affinity. T(4) contains a bulky 5' iodine group absent from T(3). Because T(3) is buried in the core of the ligand binding domain (LBD), we have predict...
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The thyroid hormone receptor (TR) directly regulates the transcription of thyroid hormone-responsive genes in response to changing levels of thyroid hormone. Mechanistically TR utilizes a complex set of binding interactions, with hormone, response elements, and coregulatory proteins, to provide specific local control of patterns of transcriptional response that are partially responsible for ind...
متن کاملInvestigation of hormone-receptor interactions by means of fluorescence labeling.
Fluorescent-labeled hormones can be used to study hormone-receptor interactions by means of fluorescence polarization, visualization by fluorescence microscopy, or separation methods, e.g., dextran-coated charcoal. Subcellular fragments, single cells, and tissue preparations are amenable to study; in this work rat uterine cytosol was used unless otherwise noted. Estrone labeled with fluorescein...
متن کاملInteractions of the nuclear thyroid hormone receptor with core histones.
These studies concern the interactions of the rat liver thyroid hormone nuclear receptor with histones and factors influencing the receptor's assay and stability. Heating certain crude receptor preparations at 50 degrees C produces a selective loss of triiodothyronine (T3) but not thyroxine (T4) binding activity, whereas, with more purified preparations, such heating decreases both T3 and T4 bi...
متن کاملDansylated thyrotropin as a probe of hormone-receptor interactions.
A strongly fluorescent 5-dimethylamino-1-naphthalene sulfonate (dansyl) derivative of bovine thyrotropin has been prepared. The dye-conjugated hormone is bioactive and shares, essentially unchanged, the membrane binding and adenylate cyclase stimulatory activities of the native hormone. Binding of 125I-labeled dansyl-thyrotropin to thyroid plasma membranes is sensitive to inhibition by ganglios...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1976
ISSN: 0014-5793
DOI: 10.1016/0014-5793(76)80157-3