3QAK

Agonist bound structure of the human adenosine A2a receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.273
  • R-Value Work: 0.217

Literature

Macromolecules
Sequence Display for 3QAK

Classification: SIGNALING PROTEIN HYDROLASE

Total Structure Weight: 56230.72

Macromolecule Entities
Molecule Chains Length Organism Details
Adenosine receptor A2a,lysozyme chimera A 488 Homo sapiens Escherichia virus t4 EC#: 3.2.1.17 IUBMB
Mutation: C1054T, C1097A
Gene Name(s): E ADORA2A Gene View ADORA2
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

Subgroup Name: G Protein-Coupled Receptors (GPCRs)

Protein Name: A2A adenosine receptor


Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
UKA
Query on UKA

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 Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
OLC
Query on OLC

A (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
1-Oleoyl-R-glycerol (Synonym)
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
UKA IC50: 4 nM (89) BindingDB
Ki: 4 nM (89) BindingDB

N/A in BindingMoad
Ki: 4.75 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.273
  • R-Value Work: 0.217
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 47.84 α = 90.00
b = 78.94 β = 100.54
c = 86.58 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2011-01-11
  • Released Date: 2011-03-09
  • Deposition author(s): Xu, F., Wu, H., Katritch, V., Han, G.W., Cherezov, V., Stevens, R., GPCR Network (GPCR), Joint center for innovative membrane protein technologies (JCIMPT)

Revision History

  • Version 1_0: 2011-03-09

    Type: Initial release

  • Version 1_1: 2011-07-13

    Type: Version format compliance

  • Version 1_2: 2012-05-02

    Type: Structure summary

  • Version 1_3: 2012-10-10

    Type: Database references

  • Version 1_4: 2017-07-26

    Type: Refinement description, Source and taxonomy