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

Abstract

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.

Authors:
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [4];  [5];  [5];  [6];  [7];  [3];  [8];  [8];  [5];  [5];  [9];  [9];  [4] more »;  [9];  [4];  [5];  [2];  [2];  [2] « less
  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)
Publication Date:
Research Org.:
SLAC National Accelerator Lab. (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1361139
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nature (London)
Additional Journal Information:
Journal Name: Nature (London); Journal Volume: 544; Journal Issue: 7650; Journal ID: ISSN 0028-0836
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; 59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Zhang, Haitao, Han, Gye Won, Batyuk, Alexander, Ishchenko, Andrii, White, Kate L., Patel, Nilkanth, Sadybekov, Anastasiia, Zamlynny, Beata, Rudd, Michael T., Hollenstein, Kaspar, Tolstikova, Alexandra, White, Thomas A., Hunter, Mark S., Weierstall, Uwe, Liu, Wei, Babaoglu, Kerim, Moore, Eric L., Katz, Ryan D., Shipman, Jennifer M., Garcia-Calvo, Margarita, Sharma, Sujata, Sheth, Payal, Soisson, Stephen M., Stevens, Raymond C., Katritch, Vsevolod, and Cherezov, Vadim. Structural basis for selectivity and diversity in angiotensin II receptors. United States: N. p., 2017. Web. doi:10.1038/nature22035.
Zhang, Haitao, Han, Gye Won, Batyuk, Alexander, Ishchenko, Andrii, White, Kate L., Patel, Nilkanth, Sadybekov, Anastasiia, Zamlynny, Beata, Rudd, Michael T., Hollenstein, Kaspar, Tolstikova, Alexandra, White, Thomas A., Hunter, Mark S., Weierstall, Uwe, Liu, Wei, Babaoglu, Kerim, Moore, Eric L., Katz, Ryan D., Shipman, Jennifer M., Garcia-Calvo, Margarita, Sharma, Sujata, Sheth, Payal, Soisson, Stephen M., Stevens, Raymond C., Katritch, Vsevolod, & Cherezov, Vadim. Structural basis for selectivity and diversity in angiotensin II receptors. United States. doi:10.1038/nature22035.
Zhang, Haitao, Han, Gye Won, Batyuk, Alexander, Ishchenko, Andrii, White, Kate L., Patel, Nilkanth, Sadybekov, Anastasiia, Zamlynny, Beata, Rudd, Michael T., Hollenstein, Kaspar, Tolstikova, Alexandra, White, Thomas A., Hunter, Mark S., Weierstall, Uwe, Liu, Wei, Babaoglu, Kerim, Moore, Eric L., Katz, Ryan D., Shipman, Jennifer M., Garcia-Calvo, Margarita, Sharma, Sujata, Sheth, Payal, Soisson, Stephen M., Stevens, Raymond C., Katritch, Vsevolod, and Cherezov, Vadim. Thu . "Structural basis for selectivity and diversity in angiotensin II receptors". United States. doi:10.1038/nature22035. https://www.osti.gov/servlets/purl/1361139.
@article{osti_1361139,
title = {Structural basis for selectivity and diversity in angiotensin II receptors},
author = {Zhang, Haitao and Han, Gye Won and Batyuk, Alexander and Ishchenko, Andrii and White, Kate L. and Patel, Nilkanth and Sadybekov, Anastasiia and Zamlynny, Beata and Rudd, Michael T. and Hollenstein, Kaspar and Tolstikova, Alexandra and White, Thomas A. and Hunter, Mark S. and Weierstall, Uwe and Liu, Wei and Babaoglu, Kerim and Moore, Eric L. and Katz, Ryan D. and Shipman, Jennifer M. and Garcia-Calvo, Margarita and Sharma, Sujata and Sheth, Payal and Soisson, Stephen M. and Stevens, Raymond C. and Katritch, Vsevolod and Cherezov, Vadim},
abstractNote = {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.},
doi = {10.1038/nature22035},
journal = {Nature (London)},
number = 7650,
volume = 544,
place = {United States},
year = {2017},
month = {4}
}

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    Works referencing / citing this record:

    The Renin-Angiotensin-Aldosterone System as a Therapeutic Target in Late Injury Caused by Ischemia-Reperfusion
    journal, April 2018

    • Rodríguez-Lara, Simón Quetzalcóatl; García-Benavides, Leonel; Miranda-Díaz, Alejandra Guillermina
    • International Journal of Endocrinology, Vol. 2018
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