Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A1B1C1D1E1F1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 164.54 kDa 
• Atom Count: 8,549 
• Modelled Residue Count: 1,101 
• Deposited Residue Count: 1,448 
• Unique protein chains: 6

 7LLY

Oxyntomodulin-bound Glucagon-Like Peptide-1 (GLP-1) Receptor in complex with Gs protein

• PDB DOI: 10.2210/pdb7LLY/pdb
• EM Map EMD-23436: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Lama glama, Sus scrofa
• Expression System: Trichoplusia ni, Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMDmpstruc


• Deposited: 2021-02-04 Released: 2022-01-12 
• Deposition Author(s): Wootten, D., Sexton, P.M., Belousoff, M.J., Danev, R., Zhang, X., Khoshouei, M., Venugopal, H.
• Funding Organization(s): Australian Research Council (ARC), National Health and Medical Research Council (NHMRC, Australia), Japan Science and Technology

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Experimental Data Snapshot

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

Literature

Dynamics of GLP-1R peptide agonist engagement are correlated with kinetics of G protein activation.

Deganutti, G., Liang, Y.L., Zhang, X., Khoshouei, M., Clydesdale, L., Belousoff, M.J., Venugopal, H., Truong, T.T., Glukhova, A., Keller, A.N., Gregory, K.J., Leach, K., Christopoulos, A., Danev, R., Reynolds, C.A., Zhao, P., Sexton, P.M., Wootten, D.

(2022) Nat Commun 13: 92-92

• PubMed: 35013280 
• DOI: 10.1038/s41467-021-27760-0
• Primary Citation of Related Structures:  
  7LLL, 7LLY


• PubMed Abstract: 
  

The glucagon-like peptide-1 receptor (GLP-1R) has broad physiological roles and is a validated target for treatment of metabolic disorders. Despite recent advances in GLP-1R structure elucidation, detailed mechanistic understanding of how different peptides generate profound differences in G protein-mediated signalling is still lacking. Here we combine cryo-electron microscopy, molecular dynamics simulations, receptor mutagenesis and pharmacological assays, to interrogate the mechanism and consequences of GLP-1R binding to four peptide agonists; glucagon-like peptide-1, oxyntomodulin, exendin-4 and exendin-P5. These data reveal that distinctions in peptide N-terminal interactions and dynamics with the GLP-1R transmembrane domain are reciprocally associated with differences in the allosteric coupling to G proteins. In particular, transient interactions with residues at the base of the binding cavity correlate with enhanced kinetics for G protein activation, providing a rationale for differences in G protein-mediated signalling efficacy from distinct agonists.

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Organizational Affiliation: 

ARC Centre for Cryo-electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia. [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short	A	394	Homo sapiens	Mutation(s): 0  Gene Names: GNAS, GNAS1, GSP Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P63092 (Homo sapiens) Explore P63092  Go to UniProtKB:  P63092
PHAROS:  P63092

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	B	340	Homo sapiens	Mutation(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

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	C [auth G]	58	Homo sapiens	Mutation(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

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Nb35	D [auth N]	128	Lama glama	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Pro-glucagon	E [auth P]	37	Sus scrofa	Mutation(s): 0  Gene Names: GCG Membrane Entity: Yes
UniProt
Find proteins for P01274 (Sus scrofa) Explore P01274  Go to UniProtKB:  P01274

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Glucagon-like peptide 1 receptor	F [auth R]	491	Homo sapiens	Mutation(s): 0  Gene Names: GLP1R Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P43220 (Homo sapiens) Explore P43220  Go to UniProtKB:  P43220
PHAROS:  P43220

Experimental Data & Validation

Experimental Data

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-01-12 
Deposition Author(s): Wootten, D., Sexton, P.M., Belousoff, M.J., Danev, R., Zhang, X., Khoshouei, M., Venugopal, H.

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Funding Organization	Location	Grant Number
Australian Research Council (ARC)	Australia	IC200100052
National Health and Medical Research Council (NHMRC, Australia)	Australia	1126857
National Health and Medical Research Council (NHMRC, Australia)	Australia	1184726
National Health and Medical Research Council (NHMRC, Australia)	Australia	1150083
Japan Science and Technology	Japan	18069571

Revision History  

• Version 1.0: 2022-01-12
  Type: Initial release
  
• Version 1.1: 2022-01-26
  Changes: Database references