6KR8

Structure of the beta2 adrenergic receptor in the full agonist bound state


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural equilibrium underlying ligand-dependent activation of beta2-adrenoreceptor.

Imai, S.Yokomizo, T.Kofuku, Y.Shiraishi, Y.Ueda, T.Shimada, I.

(2020) Nat Chem Biol 16: 430-439

  • DOI: 10.1038/s41589-019-0457-5
  • Primary Citation of Related Structures:  
    6KR8

  • PubMed Abstract: 
  • G-protein-coupled receptors (GPCRs) are seven-transmembrane proteins mediating cellular signals in response to extracellular stimuli. Although three-dimensional structures showcase snapshots that can be sampled in the process and nuclear magnetic resonance detects conformational equilibria, the mechanism by which agonist-activated GPCRs interact with various effectors remains elusive ...

    G-protein-coupled receptors (GPCRs) are seven-transmembrane proteins mediating cellular signals in response to extracellular stimuli. Although three-dimensional structures showcase snapshots that can be sampled in the process and nuclear magnetic resonance detects conformational equilibria, the mechanism by which agonist-activated GPCRs interact with various effectors remains elusive. Here, we used paramagnetic nuclear magnetic resonance for leucine amide resonances to visualize the structure of β 2 -adrenoreceptor in the full agonist-bound state, without thermostabilizing mutations abolishing its activity. The structure exhibited a unique orientation of the intracellular half of the transmembrane helix 6, forming a cluster of G-protein-interacting residues. Furthermore, analyses of efficacy-dependent chemical shifts of the residues near the pivotal PIF microswitch identified an equilibrium among three conformations, including one responsible for the varied signal level in each ligand-bound state. Together, these results provide a structural basis for the dynamic activation of GPCRs and shed light on GPCR-mediated signal transduction.


    Organizational Affiliation

    Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan. shimada@iw-nmr.f.u-tokyo.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
beta 2 adrenergic receptorA336Homo sapiensMutation(s): 0 
Gene Names: ADRB2ADRB2RB2AR
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P07550 (Homo sapiens)
Explore P07550 
Go to UniProtKB:  P07550
PHAROS:  P07550
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 6KR8 Olderado

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-08-21 
  • Released Date: 2020-01-29 
  • Deposition Author(s): Imai, S., Shimada, I.

Funding OrganizationLocationGrant Number
Japan Agency for Medical Research and Development (AMED)Japan--
Japan Society for the Promotion of ScienceJapan--

Revision History  (Full details and data files)

  • Version 1.0: 2020-01-29
    Type: Initial release
  • Version 1.1: 2020-02-05
    Changes: Database references
  • Version 1.2: 2020-04-08
    Changes: Database references