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 provide improved therapeutic outcomes ...

    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 receptorA [auth R]491Homo sapiensMutation(s): 1 
Gene Names: GLP1R
Membrane Entity: Yes 
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Find proteins for P43220 (Homo sapiens)
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PHAROS:  P43220
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Exendin-P5B [auth P]40synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms shortC [auth A]394Homo sapiensMutation(s): 8 
Gene Names: GNASGNAS1GSP
Membrane Entity: Yes 
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Find proteins for P63092 (Homo sapiens)
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PHAROS:  P63092
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1D [auth B]350Homo sapiensMutation(s): 0 
Gene Names: GNB1
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Find proteins for P62873 (Homo sapiens)
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PHAROS:  P62873
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2E [auth G]71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
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Find proteins for P59768 (Homo sapiens)
Explore P59768 
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PHAROS:  P59768
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody 35F [auth N]138Lama glamaMutation(s): 0 
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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  (Full details and data files)

  • 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