4GPO

Oligomeic Turkey Beta1-Adrenergic G Protein-Coupled Receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.355 
  • R-Value Work: 0.310 
  • R-Value Observed: 0.312 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 5F8U


Literature

Crystal structure of oligomeric beta-1-adrenergic G protein-coupled receptors in ligand-free basal state.

Huang, J.Chen, S.Zhang, J.J.Huang, X.Y.

(2013) Nat Struct Mol Biol 20: 419-425

  • DOI: 10.1038/nsmb.2504
  • Primary Citation of Related Structures:  
    4GPO

  • PubMed Abstract: 
  • G protein-coupled receptors (GPCRs) mediate transmembrane signaling. Before ligand binding, GPCRs exist in a basal state. Crystal structures of several GPCRs bound with antagonists or agonists have been solved. However, the crystal structure of the l ...

    G protein-coupled receptors (GPCRs) mediate transmembrane signaling. Before ligand binding, GPCRs exist in a basal state. Crystal structures of several GPCRs bound with antagonists or agonists have been solved. However, the crystal structure of the ligand-free basal state of a GPCR, the starting point of GPCR activation and function, had not yet been determined. Here we report the X-ray crystal structure of the ligand-free basal state of a GPCR in a lipid membrane-like environment. Oligomeric turkey β1-adrenergic receptors display two dimer interfaces. One interface involves the transmembrane domain (TM) 1, TM2, the C-terminal H8 and extracellular loop 1. The other interface engages residues from TM4, TM5, intracellular loop 2 and extracellular loop 2. Structural comparisons show that this ligand-free state is in an inactive conformation. This provides the structural basis of GPCR dimerization and oligomerization.


    Organizational Affiliation

    Department of Physiology and Biophysics, Cornell University Weill Medical College, New York, New York, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-1 adrenergic receptorAB313Meleagris gallopavoMutation(s): 0 
Gene Names: ADRB1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs): Class A
Protein: 
β1 adrenergic receptor oligomer, basal state
Find proteins for P07700 (Meleagris gallopavo)
Explore P07700 
Go to UniProtKB:  P07700
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.355 
  • R-Value Work: 0.310 
  • R-Value Observed: 0.312 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 229.66α = 90
b = 79.59β = 101.83
c = 69.04γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-27
    Type: Initial release
  • Version 1.1: 2013-04-24
    Changes: Refinement description
  • Version 1.2: 2013-06-19
    Changes: Database references