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 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 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: https://doi.org/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 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)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-1 adrenergic receptor
A, B
313Meleagris gallopavoMutation(s): 0 
Gene Names: ADRB1
Membrane Entity: Yes 
UniProt
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
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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  (Full details and data files)

  • 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
  • Version 1.3: 2023-09-13
    Changes: Data collection, Database references, Refinement description