5XR8

Crystal structure of the human CB1 in complex with agonist AM841

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.255 
  • R-Value Observed: 0.256 

wwPDB Validation 3D Report Full Report



Literature

Crystal structures of agonist-bound human cannabinoid receptor CB1.

Hua, T., Vemuri, K., Nikas, S.P., Laprairie, R.B., Wu, Y., Qu, L., Pu, M., Korde, A., Jiang, S., Ho, J.H., Han, G.W., Ding, K., Li, X., Liu, H., Hanson, M.A., Zhao, S., Bohn, L.M., Makriyannis, A., Stevens, R.C., Liu, Z.J.

(2017) Nature 547: 468-471

  • DOI: 10.1038/nature23272
  • Primary Citation of Related Structures:  
    5XRA, 5XR8

  • PubMed Abstract: 

    • The cannabinoid receptor 1 (CB 1 ) is the principal target of the psychoactive constituent of marijuana, the partial agonist Δ 9 -tetrahydrocannabinol (Δ 9 -THC). Here we report two agonist-bound crystal structures of ...

    The cannabinoid receptor 1 (CB 1 ) is the principal target of the psychoactive constituent of marijuana, the partial agonist Δ 9 -tetrahydrocannabinol (Δ 9 -THC). Here we report two agonist-bound crystal structures of human CB 1 in complex with a tetrahydrocannabinol (AM11542) and a hexahydrocannabinol (AM841) at 2.80 Å and 2.95 Å resolution, respectively. The two CB 1 -agonist complexes reveal important conformational changes in the overall structure, relative to the antagonist-bound state, including a 53% reduction in the volume of the ligand-binding pocket and an increase in the surface area of the G-protein-binding region. In addition, a 'twin toggle switch' of Phe200 3.36 and Trp356 6.48 (superscripts denote Ballesteros-Weinstein numbering) is experimentally observed and appears to be essential for receptor activation. The structures reveal important insights into the activation mechanism of CB 1 and provide a molecular basis for predicting the binding modes of Δ 9 -THC, and endogenous and synthetic cannabinoids. The plasticity of the binding pocket of CB 1 seems to be a common feature among certain class A G-protein-coupled receptors. These findings should inspire the design of chemically diverse ligands with distinct pharmacological properties.

    Organizational Affiliation: 

    School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cannabinoid receptor 1,Flavodoxin,Cannabinoid receptor 1A438Homo sapiens, Desulfovibrio vulgaris str. HildenboroughMutation(s): 5 
Gene Names: CNR1, CNR
Find proteins for P00323 (Desulfovibrio vulgaris (strain Hildenborough / ATCC 29579 / DSM 644 / NCIMB 8303))
Explore P00323 
Go to UniProtKB:  P00323
Find proteins for P21554 (Homo sapiens)
Explore P21554 
Go to UniProtKB:  P21554
NIH Common Fund Data Resources
PHAROS  P21554
GTEx  ENSG00000118432
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMN
Query on FMN
Download CCD File 
A
FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N		 Ligand Interaction
8D0
Query on 8D0
Download CCD File 
A
(6~{a}~{R},9~{R},10~{a}~{R})-9-(hydroxymethyl)-3-(8-isothiocyanato-2-methyl-octan-2-yl)-6,6-dimethyl-6~{a},7,8,9,10,10~{a}-hexahydrobenzo[c]chromen-1-ol
C26 H39 N O3 S
JCIYJYHFBBXSBF-HMXCVIKNSA-N		 Ligand Interaction
CLR
Query on CLR
Download CCD File 
A
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N		 Ligand Interaction
PEG
Query on PEG
Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.255 
  • R-Value Observed: 0.256 
  • Space Group: P 21 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.83α = 90
b = 73.61β = 90
c = 139.64γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-07-12
    Type: Initial release
  • Version 1.1: 2017-07-19
    Changes: Database references
  • Version 1.2: 2017-08-09
    Changes: Database references
  • Version 1.3: 2017-08-16
    Changes: Data collection
  • Version 1.4: 2017-10-18
    Changes: Author supporting evidence
  • Version 1.5: 2017-11-08
    Changes: Source and taxonomy
  • Version 2.0: 2020-01-22
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Refinement description, Source and taxonomy, Structure summary