5WF6

Agonist bound human A2a adenosine receptor with S91A mutation at 2.90 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.253 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural Connection between Activation Microswitch and Allosteric Sodium Site in GPCR Signaling.

White, K.L.Eddy, M.T.Gao, Z.G.Han, G.W.Lian, T.Deary, A.Patel, N.Jacobson, K.A.Katritch, V.Stevens, R.C.

(2018) Structure 26: 259-269.e5

  • DOI: 10.1016/j.str.2017.12.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Sodium ions are endogenous allosteric modulators of many G-protein-coupled receptors (GPCRs). Mutation of key residues in the sodium binding motif causes a striking effect on G-protein signaling. We report the crystal structures of agonist complexes ...

    Sodium ions are endogenous allosteric modulators of many G-protein-coupled receptors (GPCRs). Mutation of key residues in the sodium binding motif causes a striking effect on G-protein signaling. We report the crystal structures of agonist complexes for two variants in the first sodium coordination shell of the human A 2A adenosine receptor, D52 2.50 N and S91 3.39 A. Both structures present an overall active-like conformation; however, the variants show key changes in the activation motif NPxxY. Changes in the hydrogen bonding network in this microswitch suggest a possible mechanism for modified G-protein signaling and enhanced thermal stability. These structures, signaling data, and thermal stability analysis with a panel of pharmacological ligands provide a basis for understanding the role of the sodium-coordinating residues on stability and G-protein signaling. Utilizing the D 2.50 N variant is a promising method for stabilizing class A GPCRs to accelerate structural efforts and drug discovery.


    Organizational Affiliation

    Departments of Biological Sciences and Chemistry, Bridge Institute, USC Michelson Center, University of Southern California, 1002 West Childs Way, Los Angeles, CA 90089, USA. Electronic address: stevens@usc.edu.,Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Bethesda, MD 20892, USA.,Departments of Biological Sciences and Chemistry, Bridge Institute, USC Michelson Center, University of Southern California, 1002 West Childs Way, Los Angeles, CA 90089, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Human A2a adenosine receptor T4L chimera
A
504Homo sapiensEnterobacteria phage T4
This entity is chimeric
Mutation(s): 5 
Gene Names: ADORA2A (ADORA2), E
EC: 3.2.1.17
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
A2A adenosine receptor
Find proteins for P29274 (Homo sapiens)
Go to Gene View: ADORA2A
Go to UniProtKB:  P29274
Find proteins for P00720 (Enterobacteria phage T4)
Go to UniProtKB:  P00720
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OLC
Query on OLC

Download SDF File 
Download CCD File 
A
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
1-Oleoyl-R-glycerol
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
UKA
Query on UKA

Download SDF File 
Download CCD File 
A
6-(2,2-diphenylethylamino)-9-[(2R,3R,4S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxy-oxolan-2-yl]-N-[2-[(1-pyridin-2-ylpiperidin-4-yl)carbamoylamino]ethyl]purine-2-carboxamide
C40 H47 N11 O6
ZOTHAEBAWXWVID-HXEFRTELSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.253 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 47.783α = 90.00
b = 78.226β = 101.20
c = 86.477γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-02-21
    Type: Initial release