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PTH/PTHrP Receptor Signaling, Allostery, and Structures.


ABSTRACT: The parathyroid hormone (PTH) type 1 receptor (PTHR) is the canonical G protein-coupled receptor (GPCR) for PTH and PTH-related protein (PTHrP) and the key regulator of calcium homeostasis and bone turnover. PTHR function is critical for human health to maintain homeostatic control of ionized serum Ca2+ levels and has several unusual signaling features, such as endosomal cAMP signaling, that are well-studied but not structurally understood. In this review, we discuss how recently solved high resolution near-atomic structures of hormone-bound PTHR in its inactive and active signaling states and discovery of extracellular Ca2+ allosterism shed light on the structural basis for PTHR signaling and function.

SUBMITTER: Sutkeviciute I 

PROVIDER: S-EPMC6857722 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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PTH/PTHrP Receptor Signaling, Allostery, and Structures.

Sutkeviciute Ieva I   Clark Lisa J LJ   White Alex D AD   Gardella Thomas J TJ   Vilardaga Jean-Pierre JP  

Trends in endocrinology and metabolism: TEM 20191101 11


The parathyroid hormone (PTH) type 1 receptor (PTHR) is the canonical G protein-coupled receptor (GPCR) for PTH and PTH-related protein (PTHrP) and the key regulator of calcium homeostasis and bone turnover. PTHR function is critical for human health to maintain homeostatic control of ionized serum Ca<sup>2+</sup> levels and has several unusual signaling features, such as endosomal cAMP signaling, that are well-studied but not structurally understood. In this review, we discuss how recently solv  ...[more]

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2015-12-01 | GSE74082 | GEO