5VAI

Cryo-EM structure of the activated Glucagon-like peptide-1 receptor in complex with G protein


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.1 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

Cryo-EM structure of the activated GLP-1 receptor in complex with a G protein.

Zhang, Y.Sun, B.Feng, D.Hu, H.Chu, M.Qu, Q.Tarrasch, J.T.Li, S.Sun Kobilka, T.Kobilka, B.K.Skiniotis, G.

(2017) Nature 546: 248-253

  • DOI: 10.1038/nature22394

  • PubMed Abstract: 
  • Glucagon-like peptide 1 (GLP-1) is a hormone with essential roles in regulating insulin secretion, carbohydrate metabolism and appetite. GLP-1 effects are mediated through binding to the GLP-1 receptor (GLP-1R), a class B G-protein-coupled receptor ( ...

    Glucagon-like peptide 1 (GLP-1) is a hormone with essential roles in regulating insulin secretion, carbohydrate metabolism and appetite. GLP-1 effects are mediated through binding to the GLP-1 receptor (GLP-1R), a class B G-protein-coupled receptor (GPCR) that signals primarily through the stimulatory G protein Gs. Class B GPCRs are important therapeutic targets; however, our understanding of their mechanism of action is limited by the lack of structural information on activated and full-length receptors. Here we report the cryo-electron microscopy structure of the peptide-activated GLP-1R-Gs complex at near atomic resolution. The peptide is clasped between the N-terminal domain and the transmembrane core of the receptor, and further stabilized by extracellular loops. Conformational changes in the transmembrane domain result in a sharp kink in the middle of transmembrane helix 6, which pivots its intracellular half outward to accommodate the α5-helix of the Ras-like domain of Gs. These results provide a structural framework for understanding class B GPCR activation through hormone binding.


    Organizational Affiliation

    Life Sciences Institute and Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein
R
461Oryctolagus cuniculusMutation(s): 0 
Gene Names: GLP1R
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for G1SGD4 (Oryctolagus cuniculus)
Go to Gene View: GLP1R
Go to UniProtKB:  G1SGD4
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Glucagon-like peptide 1
P
31Homo sapiensMutation(s): 0 
Gene Names: GCG
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P01275 (Homo sapiens)
Go to Gene View: GCG
Go to UniProtKB:  P01275
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
A
380Homo sapiensMutation(s): 0 
Gene Names: GNAS (GNAS1, GSP)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P63092 (Homo sapiens)
Go to Gene View: GNAS
Go to UniProtKB:  P63092
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B
351Rattus norvegicusMutation(s): 0 
Gene Names: Gnb1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P54311 (Rattus norvegicus)
Go to UniProtKB:  P54311
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G
68Bos taurusMutation(s): 0 
Gene Names: GNG2
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P63212 (Bos taurus)
Go to Gene View: GNG2
Go to UniProtKB:  P63212
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
nanobody 35
N
138N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.1 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-05-24
    Type: Initial release
  • Version 1.1: 2017-06-07
    Type: Database references
  • Version 1.2: 2017-06-21
    Type: Database references
  • Version 1.3: 2018-07-18
    Type: Data collection