6N4B

Cannabinoid Receptor 1-G Protein Complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of a Signaling Cannabinoid Receptor 1-G Protein Complex.

Krishna Kumar, K.Shalev-Benami, M.Robertson, M.J.Hu, H.Banister, S.D.Hollingsworth, S.A.Latorraca, N.R.Kato, H.E.Hilger, D.Maeda, S.Weis, W.I.Farrens, D.L.Dror, R.O.Malhotra, S.V.Kobilka, B.K.Skiniotis, G.

(2019) Cell 176: 448

  • DOI: https://doi.org/10.1016/j.cell.2018.11.040
  • Primary Citation of Related Structures:  
    6N4B

  • PubMed Abstract: 

    Cannabis elicits its mood-enhancing and analgesic effects through the cannabinoid receptor 1 (CB1), a G protein-coupled receptor (GPCR) that signals primarily through the adenylyl cyclase-inhibiting heterotrimeric G protein G i . Activation of CB1-G i signaling pathways holds potential for treating a number of neurological disorders and is thus crucial to understand the mechanism of G i activation by CB1. Here, we present the structure of the CB1-G i signaling complex bound to the highly potent agonist MDMB-Fubinaca (FUB), a recently emerged illicit synthetic cannabinoid infused in street drugs that have been associated with numerous overdoses and fatalities. The structure illustrates how FUB stabilizes the receptor in an active state to facilitate nucleotide exchange in G i . The results compose the structural framework to explain CB1 activation by different classes of ligands and provide insights into the G protein coupling and selectivity mechanisms adopted by the receptor.


  • Organizational Affiliation

    Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, CA 94305, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(i) subunit alpha-1354Homo sapiensMutation(s): 0 
Gene Names: GNAI1
EC: 3.6.5
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P63096 (Homo sapiens)
Explore P63096 
Go to UniProtKB:  P63096
PHAROS:  P63096
GTEx:  ENSG00000127955 
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UniProt GroupP63096
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1344Homo sapiensMutation(s): 0 
Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens)
Explore P62873 
Go to UniProtKB:  P62873
PHAROS:  P62873
GTEx:  ENSG00000078369 
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UniProt GroupP62873
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-271Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P59768 (Homo sapiens)
Explore P59768 
Go to UniProtKB:  P59768
PHAROS:  P59768
GTEx:  ENSG00000186469 
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UniProt GroupP59768
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Cannabinoid receptor 1D [auth R]495Homo sapiensMutation(s): 0 
Gene Names: CNR1CNR
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P21554 (Homo sapiens)
Explore P21554 
Go to UniProtKB:  P21554
PHAROS:  P21554
GTEx:  ENSG00000118432 
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UniProt GroupP21554
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
scFv16E [auth S]259Mus musculusMutation(s): 0 
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Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)United StatesR37DA036246
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesR01GM083118

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-30
    Type: Initial release
  • Version 1.1: 2019-02-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-11
    Changes: Author supporting evidence
  • Version 1.3: 2024-10-09
    Changes: Data collection, Database references, Structure summary