6B3J

3.3 angstrom phase-plate cryo-EM structure of a biased agonist-bound human GLP-1 receptor-Gs complex

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.3 of the entry. See complete history. 


Literature

Phase-plate cryo-EM structure of a biased agonist-bound human GLP-1 receptor-Gs complex.

Liang, Y.L., Khoshouei, M., Glukhova, A., Furness, S.G.B., Zhao, P., Clydesdale, L., Koole, C., Truong, T.T., Thal, D.M., Lei, S., Radjainia, M., Danev, R., Baumeister, W., Wang, M.W., Miller, L.J., Christopoulos, A., Sexton, P.M., Wootten, D.

(2018) Nature 555: 121-125

  • DOI: 10.1038/nature25773
  • Primary Citation of Related Structures:  
    6B3J

  • PubMed Abstract: 

    • The class B glucagon-like peptide-1 (GLP-1) G protein-coupled receptor is a major target for the treatment of type 2 diabetes and obesity. Endogenous and mimetic GLP-1 peptides exhibit biased agonism-a difference in functional selectivity-that may provid ...

    The class B glucagon-like peptide-1 (GLP-1) G protein-coupled receptor is a major target for the treatment of type 2 diabetes and obesity. Endogenous and mimetic GLP-1 peptides exhibit biased agonism-a difference in functional selectivity-that may provide improved therapeutic outcomes. Here we describe the structure of the human GLP-1 receptor in complex with the G protein-biased peptide exendin-P5 and a Gα s heterotrimer, determined at a global resolution of 3.3 Å. At the extracellular surface, the organization of extracellular loop 3 and proximal transmembrane segments differs between our exendin-P5-bound structure and previous GLP-1-bound GLP-1 receptor structure. At the intracellular face, there was a six-degree difference in the angle of the Gαs-α5 helix engagement between structures, which was propagated across the G protein heterotrimer. In addition, the structures differed in the rate and extent of conformational reorganization of the Gα s protein. Our structure provides insights into the molecular basis of biased agonism.

    Organizational Affiliation: 

    Drug Discovery Biology and Department of Pharmacology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glucagon-like peptide 1 receptor R491Homo sapiensMutation(s): 1 
Gene Names: GLP1R
Membrane protein
Mpstruc		Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group: 
G Protein-Coupled Receptors: Class B1		Protein: 
Full-length glucagon receptor (GCGR) in complex with heterotrimeric GS protein
Find proteins for P43220 (Homo sapiens)
Explore P43220 
Go to UniProtKB:  P43220
NIH Common Fund Data Resources
PHAROS:  P43220
GTEx:  ENSG00000112164
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Exendin-P5 P40synthetic constructMutation(s): 0 
Protein Feature View
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short A394Homo sapiensMutation(s): 8 
Gene Names: GNAS, GNAS1, GSP
Membrane protein
Mpstruc		Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group: 
G Protein-Coupled Receptors: Class B1		Protein: 
Full-length glucagon receptor (GCGR) in complex with heterotrimeric GS protein
Find proteins for P63092 (Homo sapiens)
Explore P63092 
Go to UniProtKB:  P63092
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PHAROS:  P63092
Protein Feature View
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 B350Homo sapiensMutation(s): 0 
Gene Names: GNB1
Find proteins for P62873 (Homo sapiens)
Explore P62873 
Go to UniProtKB:  P62873
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PHAROS:  P62873
GTEx:  ENSG00000078369
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 G71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane protein
Mpstruc		Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group: 
G Protein-Coupled Receptors: Class B1		Protein: 
Full-length glucagon receptor (GCGR) in complex with heterotrimeric GS protein
Find proteins for P59768 (Homo sapiens)
Explore P59768 
Go to UniProtKB:  P59768
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PHAROS:  P59768
GTEx:  ENSG00000186469
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody 35 N138Lama glamaMutation(s): 0 
Protein Feature View
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Health and Medical Research Council (NHMRC, Australia)Australia1061044
National Health and Medical Research Council (NHMRC, Australia)Australia1065410
National Health and Medical Research Council (NHMRC, Australia)Australia1126857
National Health and Medical Research Council (NHMRC, Australia)Australia1055134

Revision History 

  • Version 1.0: 2018-02-21
    Type: Initial release
  • Version 1.1: 2018-02-28
    Changes: Author supporting evidence
  • Version 1.2: 2018-03-07
    Changes: Database references
  • Version 1.3: 2020-01-15
    Changes: Author supporting evidence