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Title: Structural basis for selectivity and diversity in angiotensin II receptors

Journal Article · · Nature (London)
DOI:https://doi.org/10.1038/nature22035· OSTI ID:1361139
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  1. Univ. of Southern California, Los Angeles, CA (United States); Zhejiang Univ., Zhejiang (China)
  2. Univ. of Southern California, Los Angeles, CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Merck & Co., Inc., Kenilworth, NJ (United States)
  5. Merck & Co., Inc., West Point, PA (United States)
  6. Univ. of Hamburg, Hamburg (Germany); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  7. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  8. Arizona State Univ., Tempe, AZ (United States)
  9. Merck & Co., Inc., North Wales, PA (United States)

The angiotensin II receptors AT1R and AT2R serve as key components of the renin–angiotensin–aldosterone system. AT1R has a central role in the regulation of blood pressure, but the function of AT2R is unclear and it has a variety of reported effects. To identify the mechanisms that underlie the differences in function and ligand selectivity between these receptors, here we report crystal structures of human AT2R bound to an AT2R-selective ligand and to an AT1R/AT2R dual ligand, capturing the receptor in an active-like conformation. Unexpectedly, helix VIII was found in a non-canonical position, stabilizing the active-like state, but at the same time preventing the recruitment of G proteins or β-arrestins, in agreement with the lack of signalling responses in standard cellular assays. Structure–activity relationship, docking and mutagenesis studies revealed the crucial interactions for ligand binding and selectivity. Finally, our results thus provide insights into the structural basis of the distinct functions of the angiotensin receptors, and may guide the design of new selective ligands.

Research Organization:
SLAC National Accelerator Lab. (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1361139
Journal Information:
Nature (London), Vol. 544, Issue 7650; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 145 works
Citation information provided by
Web of Science

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Cited By (42)

Focal adhesion kinase, RhoA, and p38 mitogen‐activated protein kinase modulates apoptosis mediated by angiotensin II AT 2 receptors journal September 2018
A Series of Analogues to the AT 2 R Prototype Antagonist C38 Allow Fine Tuning of the Previously Reported Antagonist Binding Mode journal January 2019
New approaches towards the understanding of integral membrane proteins: A structural perspective on G protein-coupled receptors: Structural Perspective on G Protein-Coupled Receptors journal June 2017
Structures of Non-rhodopsin GPCRs Elucidated Through X-Ray Crystallography book January 2017
A benchmark study of loop modeling methods applied to G protein-coupled receptors journal May 2019
Brain Renin–Angiotensin System Blockade Attenuates Methamphetamine-Induced Hyperlocomotion and Neurotoxicity journal February 2018
Biased signalling: from simple switches to allosteric microprocessors journal January 2018
Structural basis of ligand selectivity and disease mutations in cysteinyl leukotriene receptors journal December 2019
Counter-regulatory renin–angiotensin system in cardiovascular disease journal August 2019
Structural basis of ligand recognition at the human MT1 melatonin receptor journal April 2019
Crystal structure of the endogenous agonist-bound prostanoid receptor EP3 journal December 2018
Orthosteric and allosteric action of the C5a receptor antagonists journal June 2018
Structural basis for signal recognition and transduction by platelet-activating-factor receptor journal May 2018
Crystal structure of the human angiotensin II type 2 receptor bound to an angiotensin II analog journal July 2018
Use multiscale simulation to explore the effects of the homodimerizations between different conformation states on the activation and allosteric pathway for the μ-opioid receptor journal January 2018
The effect of dimerization on the activation and conformational dynamics of adenosine A 1 receptor journal January 2019
Advances in understanding the role of angiotensin-regulated proteins in kidney diseases journal November 2018
An outlook on using serial femtosecond crystallography in drug discovery journal May 2019
X-ray free-electron laser: opportunities for drug discovery journal July 2018
Sample delivery for serial crystallography at free-electron lasers and synchrotrons journal January 2019
Anti‐fibrotic mechanisms of angiotensin AT 2 ‐receptor stimulation journal April 2019
Novel Therapeutic Approaches Targeting the Renin-Angiotensin System and Associated Peptides in Hypertension and Heart Failure journal September 2019
Structure-based mechanism of cysteinyl leukotriene receptor inhibition by antiasthmatic drugs journal October 2019
The renin-angiotensin system: going beyond the classical paradigms journal May 2019
Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology journal July 2018
The Renin-Angiotensin-Aldosterone System as a Therapeutic Target in Late Injury Caused by Ischemia-Reperfusion
  • Rodríguez-Lara, Simón Quetzalcóatl; García-Benavides, Leonel; Miranda-Díaz, Alejandra Guillermina
  • International Journal of Endocrinology, Vol. 2018 https://doi.org/10.1155/2018/3614303
journal April 2018
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Molecular Docking and Dynamics Simulation Studies Predict Munc18b as a Target of Mycolactone: A Plausible Mechanism for Granule Exocytosis Impairment in Buruli Ulcer Pathogenesis journal March 2019
Could Mycolactone Inspire New Potent Analgesics? Perspectives and Pitfalls journal September 2019
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Structure-based mechanism of cysteinyl leukotriene receptor inhibition by antiasthmatic drugs text January 2019
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Angiotensin peptide synthesis and cyclic nucleotide modulation in sympathetic stellate ganglia journal January 2020
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A Bacterial Toxin with Analgesic Properties: Hyperpolarization of DRG Neurons by Mycolactone journal July 2017

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