Structure-Encoded Location Biased Signaling in a Class B GPCR: Focus on the PTH Type 1 Receptor.

Handb Exp Pharmacol

Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.

Published: September 2025


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Article Abstract

Research conducted over the last 15 years indicates that cAMP is generated not just from the plasma membrane but also from intracellular compartments, particularly in endosomes, where receptors are redistributed during the endocytosis process. This review centers on the parathyroid hormone type 1 receptor (PTHR) as a model for a peptide hormone GPCRs that generates cAMP from various locations with distinct duration and pharmacological effectiveness. We discuss how structural dynamics simulations aid in designing ligands that induce cAMP location bias, ultimately answering how the spatiotemporal generation of cAMP affects pharmacological responses mediated by the PTHR.

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http://dx.doi.org/10.1007/164_2025_763DOI Listing

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