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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
Alternate ID(s):
OSTI ID: 1368259
Journal Information:
Nature (London), Journal Name: Nature (London) Journal Issue: 7650 Vol. 544; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Angiotensin peptide synthesis and cyclic nucleotide modulation in sympathetic stellate ganglia journal January 2020
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
Deciphering collaborative sidechain motions in proteins during molecular dynamics simulations journal September 2020
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-Aldosterone System as a Therapeutic Target in Late Injury Caused by Ischemia-Reperfusion
  • Rodríguez-Lara, Simón Quetzalcóatl; García-Benavides, Leonel; Miranda-Díaz, Alejandra Guillermina
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Better agonist for the opioid receptors journal February 2018
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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
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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
Crystal structure of the endogenous agonist-bound prostanoid receptor EP3 journal December 2018
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Anti‐fibrotic mechanisms of angiotensin AT 2 ‐receptor stimulation journal April 2019
The renin-angiotensin system: going beyond the classical paradigms journal May 2019
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Angiotensin II Type 2 Receptor and Receptor Mas Are Colocalized and Functionally Interdependent in Obese Zucker Rat Kidney journal October 2017
Understanding Angiotensin II Type 1 Receptor Signaling in Vascular Pathophysiology journal May 2018
The association between angiotensin II type 1 receptor A1166C gene polymorphism and the risk of essential hypertension: a meta-analysis journal September 2019
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Structure-based mechanism of cysteinyl leukotriene receptor inhibition by antiasthmatic drugs text January 2019
Short-wavelength free-electron laser sources and science: a review text January 2017

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