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Review Article
Mechanisms of Disease
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Volume 337:1675-1681 December 4, 1997 Number 23
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The Thyrotropin Receptor in Thyroid Diseases
Ralf Paschke, M.D., and Marian Ludgate, Ph.D.

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The growth and function of the thyroid are controlled by thyrotropin1 through the activation of its receptor, which belongs to the large family of G protein–coupled receptors. Despite the extreme diversity of their ligands, all receptors from this family have a common molecular architecture: seven transmembrane segments, three extracellular loops, three intracellular loops, an extracellular amino terminal, and an intracytoplasmic carboxy terminal (Figure 1). The glycoprotein hormone receptors constitute a subfamily that is characterized mainly by a particularly long amino-terminal extracellular domain that confers binding specificity.1,21


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Figure 1. The Thyrotropin Receptor.

The location of constitutively activating mutations1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 and inactivating mutations15,17,18 . . . [Full Text of this Article]

 
Autonomously Functioning Thyroid Adenomas

Differentiated Thyroid Cancer

Germ-Line Mutations in the Thyrotropin Receptor in Autosomal Dominant Nonautoimmune Hyperthyroidism

Thyrotropin Resistance

The Thyrotropin Receptor and Autoimmunity

Conclusions


Source Information

From the Department of Internal Medicine III, University of Leipzig, Leipzig, Germany (R.P.), and the Department of Pathology, University of Wales College of Medicine, Cardiff, United Kingdom (M.L.). This article is dedicated to the memory of Olaf Heine, M.D.

Address reprint requests to Dr. Paschke at Department of Internal Medicine III, University of Leipzig, Ph. Rosenthal Str. 27, 04103 Leipzig, Germany.

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