4GPO

Oligomeic Turkey Beta1-Adrenergic G Protein-Coupled Receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.355 
  • R-Value Work: 0.310 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

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
  • Also Cited By: 5F8U

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-1 adrenergic receptor
A, B
313Meleagris gallopavoGene Names: ADRB1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
β1 adrenergic receptor (engineered)
Find proteins for P07700 (Meleagris gallopavo)
Go to Gene View: ADRB1
Go to UniProtKB:  P07700
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.355 
  • R-Value Work: 0.310 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 229.660α = 90.00
b = 79.590β = 101.83
c = 69.040γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
XDSdata reduction
PHENIXrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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