Turkey beta1 adrenergic receptor with stabilising mutations and bound biased agonist carvedilol

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

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This is version 1.5 of the entry. See complete history


Crystal Structures of a Stabilized Beta1-Adrenoceptor Bound to the Biased Agonists Bucindolol and Carvedilol

Warne, T.Edwards, P.C.Leslie, A.G.Tate, C.G.

(2012) Structure 20: 841

  • DOI: https://doi.org/10.1016/j.str.2012.03.014
  • Primary Citation of Related Structures:  
    4AMI, 4AMJ

  • PubMed Abstract: 

    The β(1)-adrenoceptor (β(1)AR) is the site of action of beta blockers used in the treatment of cardiac-related illnesses. Two beta blockers, carvedilol and bucindolol, show distinctive activities compared to other beta blockers and have been proposed as treatments tailored to the Arg/Gly389(8.56) polymorphism of the human β(1)AR. Both carvedilol and bucindolol are classified as biased agonists, because they stimulate G protein-independent signaling, while acting as either inverse or partial agonists of the G protein pathway. We have determined the crystal structures of a thermostabilized avian β(1)AR mutant bound to bucindolol and to carvedilol at 3.2 and 2.3 Å resolution, respectively. In comparison to other beta blockers, bucindolol and carvedilol interact with additional residues, in extracellular loop 2 and transmembrane helix 7, which may promote G protein-independent signaling. The structures also suggest that there may be a structural explanation for the pharmacological differences arising from the Arg/Gly389(8.56) polymorphism.

  • Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
315Meleagris gallopavoMutation(s): 8 
Membrane Entity: Yes 
Find proteins for P07700 (Meleagris gallopavo)
Explore P07700 
Go to UniProtKB:  P07700
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07700
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on CVD

Download Ideal Coordinates CCD File 
C [auth A],
N [auth B]
C24 H26 N2 O4
Query on 2CV

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E [auth A]
F [auth A]
G [auth A]
H [auth A]
I [auth A]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth B],
P [auth B],
Q [auth B],
R [auth B]
C18 H37 N O7
Query on NA

Download Ideal Coordinates CCD File 
D [auth A],
O [auth B]
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.056α = 90
b = 62.196β = 109.17
c = 100.926γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-05-23
    Type: Initial release
  • Version 1.1: 2012-05-30
    Changes: Other
  • Version 1.2: 2012-10-31
    Changes: Atomic model
  • Version 1.3: 2014-12-03
    Changes: Derived calculations
  • Version 1.4: 2019-04-03
    Changes: Data collection, Experimental preparation, Other, Source and taxonomy
  • Version 1.5: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description