6OS2

Structure of synthetic nanobody-stabilized angiotensin II type 1 receptor bound to TRV026


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.238 

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This is version 1.2 of the entry. See complete history


Literature

Angiotensin and biased analogs induce structurally distinct active conformations within a GPCR.

Wingler, L.M.Skiba, M.A.McMahon, C.Staus, D.P.Kleinhenz, A.L.W.Suomivuori, C.M.Latorraca, N.R.Dror, R.O.Lefkowitz, R.J.Kruse, A.C.

(2020) Science 367: 888-892

  • DOI: 10.1126/science.aay9813
  • Primary Citation of Related Structures:  
    6OS0, 6OS1, 6OS2

  • PubMed Abstract: 
  • Biased agonists of G protein-coupled receptors (GPCRs) preferentially activate a subset of downstream signaling pathways. In this work, we present crystal structures of angiotensin II type 1 receptor (AT1R) (2.7 to 2.9 angstroms) bound to three ligands with divergent bias profiles: the balanced endogenous agonist angiotensin II (AngII) and two strongly β-arrestin-biased analogs ...

    Biased agonists of G protein-coupled receptors (GPCRs) preferentially activate a subset of downstream signaling pathways. In this work, we present crystal structures of angiotensin II type 1 receptor (AT1R) (2.7 to 2.9 angstroms) bound to three ligands with divergent bias profiles: the balanced endogenous agonist angiotensin II (AngII) and two strongly β-arrestin-biased analogs. Compared with other ligands, AngII promotes more-substantial rearrangements not only at the bottom of the ligand-binding pocket but also in a key polar network in the receptor core, which forms a sodium-binding site in most GPCRs. Divergences from the family consensus in this region, which appears to act as a biased signaling switch, may predispose the AT1R and certain other GPCRs (such as chemokine receptors) to adopt conformations that are capable of activating β-arrestin but not heterotrimeric G q protein signaling.


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA. lefko001@receptor-biol.duke.edu andrew_kruse@hms.harvard.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Type-1 angiotensin II receptor,Soluble cytochrome b562 BRIL fusion proteinA425Homo sapiensEscherichia coliMutation(s): 1 
Gene Names: AGTR1AGTR1AAGTR1BAT2R1AT2R1BcybC
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P30556 (Homo sapiens)
Explore P30556 
Go to UniProtKB:  P30556
PHAROS:  P30556
Find proteins for P0ABE7 (Escherichia coli)
Explore P0ABE7 
Go to UniProtKB:  P0ABE7
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody Nb.AT110i1_leB [auth D]128synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
TRV026 peptideC [auth B]8synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SAR
Query on SAR
C [auth B]PEPTIDE LINKINGC3 H7 N O2GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.238 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.96α = 90
b = 101.35β = 90
c = 225.9γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)United StatesR01HL16037
National Institutes of Health/Office of the DirectorUnited States5DP5OD021345
Other privateUnited States--
Howard Hughes Medical Institute (HHMI)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-19
    Type: Initial release
  • Version 1.1: 2020-03-04
    Changes: Database references
  • Version 1.2: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary